Term
|
Definition
| Short term condition of all properties of atmosphere: temperature, pressure, humidity, wind speed& direction, precipitation, sunshine, cloud cover... |
|
|
Term
| Weaher change occurs when |
|
Definition
| one air mass(warm/cold, wet/dry, high pressure/low pressure) replaces the other(opposite in conditions) |
|
|
Term
| what causes unequal heating(cold and warm air masses) of atmosphere? |
|
Definition
| The angle at which sun's rays strike the particular location of the planet(polar caps, equator)determined by tilt of Earth amd revolution |
|
|
Term
What 6 things control/determine
WEATHER and CLIMATE of the environment? |
|
Definition
| latitude, altitude, land and water ratio(water stores heat), ocean currents and distributed air,landform barriers to air movement(Coast range of California) and human activity |
|
|
Term
|
Definition
| Average of weather for a long period of time-30 years minimum(generally:average temperature) |
|
|
Term
| What are two main factors determining weather and climate of region? |
|
Definition
| Precipitation and temperature |
|
|
Term
|
Definition
| large body of air (100'1 of sq.mi in diameter)with nearly the same temperature and humidity |
|
|
Term
| what are four types of air masses and what do the term parts mean? |
|
Definition
1.continental(dry-forming over land) polar(dry)
2.continental tropical(warm)
3.Maritime(wet, forming over aqua) polar
4.Maritime tropical |
|
|
Term
| Cool dense air has ____pressure while warm less-dense air has ____ pressure |
|
Definition
| high, low ( because cold air when sinks to ground is squeezed together under mass of air above) |
|
|
Term
| warm air mass is _____ than the surface over which it passes, same pattern with cold air mass |
|
Definition
|
|
Term
|
Definition
| where two air masses meet |
|
|
Term
|
Definition
when two air masses:cold air and warm air, meet and cold air mass settles at the bottom of a STEEP frontal boundary
under warm air, QUICKLY pushing warm air up to rise |
|
|
Term
| What is squall line? Which front causes squall line? |
|
Definition
| Long chain of very violent, but shirt-lived storms/cold front |
|
|
Term
|
Definition
| when two air masses meet(cold and warm)and warm air rises up a gradual frontal boundary settling above warm air |
|
|
Term
| Which front, cold or warm, results in more violent storms? longer storms? |
|
Definition
|
|
Term
|
Definition
| When cold air mass meets the cool air mass and the cooler air rises above cold air, pushing warm air already above cold air |
|
|
Term
|
Definition
| When cold air mass and warm air mass meet at same level due to slow rise or descend of one or another and stop moving for a period due to parallel winds that have formed along the air masses until normal motion is resumed |
|
|
Term
| _____(temp.) water powers the hurricane. The ______(temp.) the water, the more intense the hurricane. |
|
Definition
|
|
Term
| What are tropical cyclones and where and when do they form? |
|
Definition
| severe tropical storms(hurricanes, typhoons) powered by heat from water/ over tropical waters in late summer or early fall |
|
|
Term
| What causes most damage in tropical cyclones? |
|
Definition
| storm surge- water battering the shore line |
|
|
Term
|
Definition
| global vertical currents through which heat and moisture are distributed |
|
|
Term
|
Definition
|
|
Term
| The low pressure air mass forms when |
|
Definition
| rising air column rises more quickly than it can be replaced(mass of local area reduced) |
|
|
Term
| ________ is the most powerful type of storm. Why? It lasts_____. |
|
Definition
| tornado/enormous size and speed(can reach up to 300mph)/Short period of time |
|
|
Term
| What fact can explain the theory of Earth's conveyer belt leading to end of Ice Age? |
|
Definition
| It distributes cold and hot air throughout the planet |
|
|
Term
| Current circulation and air flow in convection cells are the results of |
|
Definition
| unequal heating or cooling of earth |
|
|
Term
| Why is the equator warmer than the poles? |
|
Definition
| It receives more direct sunlight(travels less distance, more energy, more warmth) |
|
|
Term
| How is the coriolis effect created |
|
Definition
| rotation of earth on axis; winds in the N/ Hamisphere spin towards right into S. Hamisphere winds |
|
|
Term
| Hadley cells are present every __degrees, there are _ of them on Earth. |
|
Definition
|
|
Term
| Describe Milankovitch cycle |
|
Definition
| Every once in a 1000 yrs. Earth wobbles on its axis. Link to Ice Age. |
|
|
Term
| Describe leaping frog effect |
|
Definition
| When one of the Hadley cells-convection cells, picks up the pollution of other hadley cells, and carries it up or down in latitude, into a different region |
|
|
Term
| El Nino used to occur every __ years, now occurs in every __ years, theoretically due to _________. |
|
Definition
|
|
Term
|
Definition
| Trade winds, normally blowing west in the Equatorial Pacific Ocean region,weaken and reverse direction to east pushing warm(unusually) water towards east side of continents. This lowers the thermocline in oceans, suprassin gupwelling. As nutrients don't ascend to the surface from the ocean depths, population of plankton, fish, and birds,and on is disrupted. Global change in temperature occurs. |
|
|
Term
|
Definition
| winds that blow across eastern hamisphere- normally towards west, but east during El Nino; they push the unusually warm waters of Equatorial Pacific Ocean away from continents, whereas during an El Nino warm waters are pushed toward continents |
|
|
Term
| What are the climatic changes that may reult from El Nino |
|
Definition
| wetter conditions, warmer water, higher temperatures, drier conditions, droughts |
|
|
Term
| How do wetter conditions, resulting from El Nino, has a negative effect on continents? |
|
Definition
1. increases regions where mosquitoes(carriers of disease) can breed
2.flooding-sanitation problem |
|
|
Term
| How does warmer water near the continents, resulting from El Nino inflict a negative impact on the continents? |
|
Definition
1. Allows increased growth of phyto and zoo plankton and therefore the increase in ammoun tof toxins(poisonous to animals) they produce
2. Bacterial growth increase in warm water
3. Increase in breeding of insects |
|
|
Term
| How does higer air/land temperature, which results from El Nino, have a negative impact on continents? |
|
Definition
1.Loneger reproduction of insects, such as mosquitoes
2. Increase in breeding of insects
3. Higher population of insects in wintr due to the higher winter temperatures( not many killed by frezzes) |
|
|
Term
| How do slightly drier conditions resulting from El Nino negatively affect the continents? |
|
Definition
| 1.Stangnant streams, which become ponds in which serve as mosquito breeding grounds, cause increase in mosquito populations |
|
|
Term
| How does drought negatively affect continents during El Nino |
|
Definition
1. Shortage of fresh water
2. Concentration of pollutants in shallow ponds
3. Higher probability of diahhreal diseases |
|
|
Term
| People most affected by the diseases resulting from El Nino are those where a) and b) |
|
Definition
a) Climate changes are at the extreme
b) Low healthcare and sanitation |
|
|
Term
| Describe the normal state of Equtorial Pacific Ecean conditions |
|
Definition
| Trade winds blow westward, pushing warm water away from continents, causing upwelling along the western edges of continents |
|
|
Term
|
Definition
| the process by which the thermocline(transition between cold and warm water) bends and surfaces at one end- along the western edge of continents by the Equtorial Pacific Ocean, resulting in the ascending of nutrients from the ocean depths to the top |
|
|
Term
| Climatic conditions that generally result from El Nino are |
|
Definition
|
|
Term
| High pressure air mass is associated with |
|
Definition
|
|
Term
| Low pressure air mass is associated with |
|
Definition
|
|
Term
| The high pressure air forms when |
|
Definition
| a sinking column of air spreads out as it meets the surface and accumulates(mass of local area increases) |
|
|
Term
|
Definition
| opposite of El Nino, characterized with unusually cold ocean temeratures(cold water that is moved by winds) |
|
|
Term
| What winter weather across USA does La Nina bring? |
|
Definition
Southeast USA: warm winters
Great Lakes to Northwest: cold winters
North East & Middle Atlantic states: mixture of bad/good winter |
|
|
Term
| What is the continent that existed approximately 225 million years ago |
|
Definition
|
|
Term
| Proposition of Continental drift theory |
|
Definition
| The theory that continents move proposed by Alfred Wagener |
|
|
Term
|
Definition
| study of movement of earth's crust |
|
|
Term
|
Definition
| crust and upper portion of mantle, plates |
|
|
Term
|
Definition
| molten lower mantle on which the lithosphere(plates) floats |
|
|
Term
|
Definition
| Flow of magma driven by intense heat of inner core(cool magma-denser descends while hot magma ascends) |
|
|
Term
| Seafloor spreading is a result of what internal process of Erath |
|
Definition
|
|
Term
| How can formation of mountains be explained? |
|
Definition
| Convergent plate boundary where plates come together |
|
|
Term
| What happens at subduction zone |
|
Definition
| two plates come together and one plate subductsunder the other plate and its material is melted into magma |
|
|
Term
| Why are there frequent earthquakes in California |
|
Definition
| Calfornia is composed of several small pieces of plates jammed together that slide |
|
|
Term
| rate of movement of plates each year |
|
Definition
|
|
Term
| Name the types and number of plates earth's crust consists of |
|
Definition
| 20 lithospheric plates, 7 major plates(continents) and 13 minor plates |
|
|
Term
| List the steps of progress of continental drift |
|
Definition
approx.225 million years ago- Pangea(supercontinent)
135 yrs ago- Pangea broke apart into Gondwandaland(southern part) and Laurasia(northern part)
65 million yrs ago- 7 major continents formed and took on present locations |
|
|
Term
| What is the evidence to continental drift theory |
|
Definition
plates fitting together like a puzzle
fossil record
convection current and seafloor spreading |
|
|
Term
| air moves from(hint: pressure) |
|
Definition
| high air pressure to low air pressure |
|
|
Term
| Which type of crust is thicker?(oceanic or continental) |
|
Definition
| continental(30-60km thick while oceanic is 5-10km) |
|
|
Term
| How does mid ocean ridge shape? |
|
Definition
| My seafloor spreading: the oceanic crust parts and is pshed apart due to emerging magma from the Earth's interior. The thinner oceanic crust is puckered against he boundaring continental crust causing the formation of underwayer mountains. |
|
|
Term
|
Definition
| Large land region with different populations and communities adapted to region's specific climate, having similar adaptations. |
|
|
Term
| Why are there different organisms in different places? |
|
Definition
| difference in climate and therefore the results of the specific levels of precipitation and temperature |
|
|
Term
| How many plates are there?How are they distributed? |
|
Definition
| 20; 7 major plates(continents) and 13 minor plates |
|
|
Term
|
Definition
| Boundary of two plates that slide |
|
|
Term
| What determines the type of biome? |
|
Definition
| precipitation, soil type, temperature |
|
|
Term
| What's the limiting factor for plants that determines what type of biome they will inhabit? |
|
Definition
|
|
Term
| Which side of the mountatins(leeward or windward) will be dry according to the rainshadow effect? |
|
Definition
|
|
Term
| Climate and biomes vary with ________&________ |
|
Definition
|
|
Term
| Climates get ________from equator to poles. |
|
Definition
|
|
Term
| How come different plants have different shapes, sizes, and survival strategies? |
|
Definition
| Due to inhabitation of different biomes, which differ in climate and soil type. |
|
|
Term
|
Definition
| Plants that survive in dry climates all day long. They have vertical orientation, limiting the amount of absorbed sunlight and no leaves, allowing storage of water. Pores open only at night for the absorbtion of CO2. ex: Cacti |
|
|
Term
| Broadleaf evergreen plants/ex. |
|
Definition
| Trees of wet-tropical that keep most of their broad leaves all year long. Large surface-area-leaves help in photosynthesis and release of heat during the day. ex: rainforest trees |
|
|
Term
| Broadleaf decidious plants/ex. |
|
Definition
| Plants that survive drought or cold by shedding leaves and becoming dormant. ex. oak |
|
|
Term
| Coniferous evergreen plants/ex. |
|
Definition
| Plants with cones, keeping some of their needle shaped leaves all year long. Leaves' Waxy layer restrains heat and water loss. ex: spruce |
|
|
Term
|
Definition
| Species that play roles affectong many other species in an ecosystem/Flying bats-pollinators, alligator-protector of its eggs |
|
|
Term
|
Definition
| Species that serve as early warnings that a community or an ecosystem is being damaged./lichen population decreases with pollution, frogs react if pollution enters body |
|
|
Term
|
Definition
| Non-native species that migrate into an area or are accidentally inroduced to an area by humans./boa constrictor and python in Everglades, armadillo in Florida |
|
|
Term
| How come some non-native species thrive in a foreign area? |
|
Definition
| similar climate+no natural predators(the specie doesn't take place in any food chain) |
|
|
Term
|
Definition
| Species that usually live and thrive in a certain biome |
|
|
Term
|
Definition
| Area where evaporatiom exceeds precipitation |
|
|
Term
| What is the largest desert? Where is it located? |
|
Definition
|
|
Term
| Characterize tropical desert/ex. |
|
Definition
High teperature all year long
little rain
driest place on Earth
little vegetation/sahara |
|
|
Term
| Characterize temperate desert/ex. |
|
Definition
Daytime summer tepmerature is hot
Daytime winter temperatures are low
More precipitation that in the tropical desert/Mohabi |
|
|
Term
| Characterize cold desert/ex. |
|
Definition
Cold winters
Warm or hot summers lasting 6-8 weeks
Low precipitation/Gobi Desert in China |
|
|
Term
| List the characteristics of desert plants that help them survive? |
|
Definition
Wax coating(coniferous) for prevention of loss of water
Deep tap roots that reach far undergound for water and contain the nutrients
Dormancy during dry periods |
|
|
Term
| List the characteristics of desert animals that help them survive? |
|
Definition
Deep burrows
Animal hide
Thick outer skin for consevation of H2O |
|
|
Term
| How do humans impact the desert ecosystems? |
|
Definition
Building cities and claiming habitat
Vehicles off-road destruct soil
Soil salinization(build up of salt) due to irrigation
mining
millitary experimentation
Storage of toxins and radioactive wastes |
|
|
Term
|
Definition
| Regions with enough annual precipitation to allow grass and shrub growth. Droughts(insufficient precipitation) and fires prevent abundant growth of trees. |
|
|
Term
| Grass in the grasslands persists becaise of: |
|
Definition
occasional fires(leave behind nutritious soil)
seasonal drought(biodiversity)
grazing of large herbivores(prevent overpopulation and demand of resources) |
|
|
Term
| Three types of grasslands |
|
Definition
| tropical, temperate, and polar |
|
|
Term
| Tropical Cyclones in the Pacific are called _______while tropical cyclones in th eatlantic are called ________ |
|
Definition
|
|
Term
| Tropical grassland location and characteristics |
|
Definition
| equitorial regions/high temperatures, low-moderate precipitation, extended dry season |
|
|
Term
| what category does the savannah belong to? characterize it. |
|
Definition
| tropical grasslands/warm teperature year round, two extended dry seasons, abundant rain the rest of the year |
|
|
Term
| How do animals of savannah categorize themselves in feeding patterns to avoid competition and ensure sufficient feeding? |
|
Definition
| grazing animals eat grass(gazelles), browsing animals eat twigs and leaves(giraffes) |
|
|
Term
| temperate grasslands and types |
|
Definition
| bitter cold winters, hot and dry summers, sparce, periodic, uneven precipitation/prairies, pampas, vel, steppesdt |
|
|
Term
| How is arctic tundra affected by humans? |
|
Definition
| air and water pollution, vehicles oil production |
|
|
Term
| What is monoculture/does it have negative or positive affect/how |
|
Definition
| Planting mile after mile of the same crop in farming/negative/soil becomes prone to erosion, since a certain type of crop uses certain type of nutrient, than nutrient becomes depleted because there are too many same crops planted, much fertilizer is required as substitute of natural nutrient, as well as irrigation |
|
|
Term
| polar grasslands climate and soil |
|
Definition
| winters: bitterly cold, frigid winds, snow or ice covering, dry soil because permafrost prevents water from seeping down; summers are short with soggy soil |
|
|
Term
| Describe arctic tundra's vegetation and adaptations |
|
Definition
| low to the ground thick spongy mat of grasses, mosses, and shrubs due to cold winds, some evergreens with waxy coating to prevent loss of water and heat |
|
|
Term
| Describe polar grasslands' animals' adaptations and behaviors and give examples |
|
Definition
| no hibernation, underground burrows, thick coats of fur or feather, tightly packed bodies to limit exposure/reindeer, wolves, snowy owl |
|
|
Term
| alpina tundra/ how does vegetation here differ from vegetation in arctic tundra |
|
Definition
| Occurs on mountains above limit of tree growth, but below permanent snow/vegetation gets more sunlight |
|
|
Term
| chaparral geographic locations/climate |
|
Definition
| coastal areas/Mediterranean climate: mild winters, moderate precipitation,long, hot, and dry summers |
|
|
Term
| Describe vegetation of a temperate shrubland |
|
Definition
| Dense growth of low evergreen shrubs, leathery leaves that resist water loss, large underground root system, plants store food supple in fire resistant roots as they the biome is prone to fires |
|
|
Term
| what is so special about the reproduction of plants in a charappal |
|
Definition
| seeds only sprout after fire that bursts the cone |
|
|
Term
| How do humans impact the tropical and temperate grasslands |
|
Definition
| converting grassland into farmland due to thick and fertile soil, release of CO2 by slash and burn agriculture, overgrazing area by livestock(disturbs root system and kills plants) |
|
|
Term
| tropical rainforest/ descriptions on climate |
|
Definition
| broadleaf evergreen forest in equitorial region/warm climate year-round, high humidity, heavy precipitation |
|
|
Term
| Which biome and category has the most diversity on Earth/ how many existant land species on Earth does it serve as home for |
|
Definition
| forests, rainforests/50-80% |
|
|
Term
| What are the layers of the rain forest-top to bottom/which two absorb most sunlight/ehich one absorbs least sunlight |
|
Definition
| emergent layer, canopy, understory, shrub layer, ground layer/emergent and canopy/ground layer |
|
|
Term
| governments owning rainforests encourage or discourage its deforestation/why? |
|
Definition
| encorage/money for government from lumber |
|
|
Term
| What type of root do massive rainforest trees have |
|
Definition
|
|
Term
| tropical decidious forest sharacteristics of climate |
|
Definition
| warm year round, rainfall during wet season(monsoon) |
|
|
Term
| describe the trees of tropical rainforest and compare them to trees of tropical rain forest |
|
Definition
| decidious trees(loose leaves to survive dry season), evergreen trees(retain leaves year-round) Canopy is lower |
|
|
Term
| Temperate decidious forest climatic characteristics |
|
Definition
| moderate average temperatues, long warm summers, col(not severe winters), abundant precipitation spread even throughout the year |
|
|
Term
| Temerate decidious forest plants |
|
Definition
| broadleaf decidious plants that become dormant in winter(shed leaves) |
|
|
Term
| tropical and temperate grasslands and temperate forest can all be turned into farmland because of |
|
Definition
|
|
Term
| Evergreen coniferous forests(syns.) climate and soil |
|
Definition
| boreal forest, taiga/Long, dry and cold winters, sunlight 6-8 hrs a day, short summers, nutrient poor soil:acidic |
|
|
Term
| Evergreen coniferous forest trees |
|
Definition
Coniferous evergreen plants: cone-
bearing trees with needle shaped leaves,
waxy covering |
|
|
Term
| How does temperate rain forest differ from tropical rainforest? |
|
Definition
|
|
Term
| How do humans impact world's forest |
|
Definition
deforestation for agriculture, livestock, and
timpeb harvesting, urban development,
conversion of forests to tree farms |
|
|
Term
Dramatic changes occur in mountain
biomes due to |
|
Definition
great change in altitude over short
distance, and therefore great change in
climate, soil, and vegetation |
|
|
Term
How are mountains valuable abiotic
factors? |
|
Definition
| contain majority of world's forests,regulate global climate by reflecting solar radiation (snow tops), playing part in hydrologic cycle |
|
|
Term
| How do humans impact mountain biomes |
|
Definition
timber and mineral extraction,increasing tourism, air pollution from industry - 03 depletion-increased exposure to UV
radiation. |
|
|
Term
Vegetation _______ as you go up the
mountain. |
|
Definition
|
|
Term
| How much in percentage of USA land is set aside for public use(resources, enjoyment) and wildlife/what state mostly |
|
Definition
|
|
Term
| Which two presidents comntributed to the most in the preservation of land for public use and wildlife |
|
Definition
|
|
Term
|
Definition
| Preserved area managed by the principle of multiple use(land could be used for variety of purposes:logging, mimingm farming, recreation with permit) and principle of sustainable yield(resources can't be harvested faster than replenished). |
|
|
Term
|
Definition
| Land containing major energy source or mineral(uranium, coal) |
|
|
Term
|
Definition
| area with some land(25%)preserved as wilderness; some land used by public(logging, grazing, hunting...with permit) |
|
|
Term
|
Definition
| Half of the land is preserved wilderness for animals; half used for public recreation like camping, hiking, fishing, and boating |
|
|
Term
| national wilderness preservation system |
|
Definition
| roadless areas to be almost untouched by Americans except for recreation(camping, hunting, boating, fishing) |
|
|
Term
|
Definition
| Trees that have a short time growth and are continually cut and replaced for fuel wood and textile threads |
|
|
Term
|
Definition
| type of trees that take 100 yrs to mature; used as furniture wood or plywood |
|
|
Term
| Even aged management vs. uneven aged managment of forest |
|
Definition
| Practice of cutting down trees all at once therefore maintaining same size and age of trees/ Practice of cutting down and replanting different aged trees, therefore maintaining different age and size of trees |
|
|
Term
| Decsribe Selective cutting and benefit |
|
Definition
| Intermediate or mature trees are selected to be cut in a forest; reduces crowding |
|
|
Term
| Describe shelter wood cutting/benefit |
|
Definition
| Removing all mature trees in 2-3 timber harvests over 10yrs/sunlight reaches young plants as a result |
|
|
Term
|
Definition
| Cutting down all, but strong and mature trees, which srop seeds |
|
|
Term
| Which type of forest harvesting is the worst, describe it, and explain why it's the worst |
|
Definition
| clear cutting- removal of all trees of the forest in single harvest/causes loss of habitat, cause soil to become susceptible to erosion, reduce biodiversity |
|
|
Term
|
Definition
| Type of clear-cutting deforestation-cutting strips of trees at a time, in order, allowing regeneration of cut areas and reuse |
|
|
Term
| whole tree harvesting/gove example of downside |
|
Definition
| Harvest of whole trees(limbs and twigs are chipped into pulp for paper, big parts of trees are used for building materials /nothing left to replenish soil |
|
|
Term
| How is fire important to certain coniferous trees |
|
Definition
| It bursts the cone and releases the seeds that allow coniferous plants to germinate |
|
|
Term
| How does fire affect the soil? |
|
Definition
| It returns plan stored nutrients to the soil |
|
|
Term
|
Definition
| occur close to the ground, burn undergrowth |
|
|
Term
| Which type of fire is the worst, why |
|
Definition
| Crown fire, burn whole trees |
|
|
Term
|
Definition
| Fires that proceed underground, smoldering through litter and humus, burning most of organic layer |
|
|
Term
| Fragmentation and its result |
|
Definition
| The pattern of increased destruction of habitat by more an more road construsctions and area conversions into farmland or grazeland or mining land...The result is organisms' habitat being limited by borders and the result of its inability to interbreed with organisms of same popuation throughout the forest due to |
|
|
Term
|
Definition
| Method of prevention of natural fires by setting controled ground fires to get rid of flammable material that builds up |
|
|
Term
|
Definition
| early detection and control of fires |
|
|
Term
|
Definition
| the fighting of fires once they have started |
|
|
Term
| fire prevention methods besides prescribed burning |
|
Definition
| burning permits(when starting fire within 500 ft from grassland, forest, or woodland) closed camping during high fire seasons, Smokey Bear |
|
|
Term
| How can prevention of alll fires lead to the likelihood of higlhy destructive crown fires? |
|
Definition
| No fires lead to accumulation of brush, shrubs, and small trees, which make fire grow hotter and spread faster, Developed growth of various aged(height) trees acts as staircase between next ground fire to crown fire. Overall increased density of the forest allows more destructive fires next time(spread easier and burn hotter) |
|
|
Term
| Why would it be unhealthy for the forest located by a city? |
|
Definition
| Air pollution is highly concentrated |
|
|
Term
| How are boreal forests affected by global warming |
|
Definition
| increased threat of fires in the dry region, change in temperature threatens organisms |
|
|
Term
| How can we promote sustaiable forestry |
|
Definition
recycle more paper
not wasting pulp on production of unnecessary paper(junk mail)
selective sutting and strip cutting
minimizing fragmentation
Leaving debris of cut-down trees to recycle nutrients
evaluate economic value of tree before cut down |
|
|
Term
| What is Healthy Forest Restoration Act and which president issed it? |
|
Definition
| A law issued to resist destructive wildfires in order to save lives of firefighters, citizens of communities, threatened and wndangered species, and protect property by reducing tree density and build-up of underbrush and litter/President Bush |
|
|
Term
| what are the negative aspects of Healthy Forest Restoration Act |
|
Definition
| It encourages deforestation, which leads to loss of habitat and biodiversity |
|
|
Term
| How do trees benefit us and living things ecologically? |
|
Definition
Intake CO2-#1 green house gas
Provide habitat
Prevent erosion
Nutrients to soil from litter and organic material
Slow down precipitation |
|
|
Term
| How does a Hadley Cell keep cycling? |
|
Definition
| warm air as it rises, grows colder and denser due to higher altitude; cold air grows warmer as it descends because of lowering altitude; dense air descends beneath while less dense air ascends atop |
|
|
