Term
| How does the balance in the ecosystem get disrupted? |
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Definition
| By introducing pollutants into the atmosphere |
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Term
Give an example of a balanced ecosystem
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Definition
answers can vary:
1) Ntrients when organisms die and decomposes make their components available to other organisms
2) bacteria reduces waste materials, converting them into useful substances for other organisms
3) The carbon cycle; where CO2 becomes a vital reactant for photosynthesis in producers |
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Term
What are pollutants, and how do they affect population growth?
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Definition
| Substances introduced into air, water, soil or food in concentrations that threaten the health or survival of organisms. They can affect natural population growth by destroying habitat and food sources, or by killing organisms |
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Term
| What is the most common source of pollutants? |
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Definition
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Term
What is air pollution composed of?
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Definition
| gases and suspended materials that are added to the atmosphere |
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Term
| water pollution includes what? |
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Definition
| substances that ultimately end up in fresh and salt water |
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Term
| Explain the relationship between cycling of matter and pollutants |
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Definition
| The cycling of matter cause pollutants to often move between air, water, and land. |
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Term
What are most air pollutants a result of?
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Definition
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Term
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Definition
| Volatile organic compounds of hydrogen and carbon like fuels. It comes from cars, and unburned fuels that combine with air pollutants to form smog and ground-level ozone |
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Term
| what impacts does carbon monoxide have on the ecosystem? |
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Definition
- intereres with respiration
- causes death in high concentrations
- forms ozone
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Term
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Definition
| A colourless gas that smells like burnt matches. It comes form volcanic eruptions, burning of coal and oil, and copper smelting. It forms acid rain, dissolves in water and soil, and interferes with plant growth. |
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Term
Nitrogen monoxide and dioxide come from.......
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Definition
| burning of fossil fuels, and industrial processes |
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Term
| What is ground-level ozone? |
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Definition
| A colourless gas produced by a chemical reaction wtih nitrogen monoxide, VOCs and sunlight. It interferes with plant growth, is a component of smog and causes respiratory problems in animals |
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Term
| What are sources of particulate matter? |
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Definition
| dust, soot, smoke, fuel droplets, tar, pesticides, and asbestos |
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Term
| What is one important consequence of air pollution? |
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Definition
| Acid Precipitation or Acid rain |
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Term
| Explain how acid rain is formed |
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Definition
Sulfur dioxide and nitrogen monoxide react with water vapour forming acidic compounds. Prevailing winds blow the pollutants and fall as precipitation
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Term
| Organisms within ecosystems are adapted to survive within a certain.... |
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Definition
| pH range or range of acidity |
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Term
| Which organisms are most affected by the acidity of environments? What happens to them? |
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Definition
| Aquatic organisms. Populations of fish can be killed. |
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Term
| What are the impacts of acid precipitation? |
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Definition
| Waters are cleared, leaes are damaged, and so is soil |
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Term
| What are used to fix the problem of acid rain? |
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Definition
| Limestone, and lime to neutralize it |
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Term
| What is dissolved oxygen? |
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Definition
| Dissolved oxygen is microscopic oxygen bubbles in water. |
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Term
| How do toxins accumulate into the food chain? |
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Definition
| As organisms die, chemicals and toxins contaminate the bodies of the fish. When other fish feed on the dead organism, they also get contaminated, and eventually die. This cycle repeats. |
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Term
| How do pollutants enter water sources? |
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Definition
| Through runoff from land, or when added directly to the water, such as oil spills and sewage. |
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Term
| What is thermal energy? (Refer to textbook.) |
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Definition
| Thermal energy is the result of hot water being added to natural water; impacts the ecosystem by decreasing the solubility of oxygen in water. |
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Term
| What are some water pollutants? Name three. |
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Definition
Some water pollutants include:
Organic soild waste
Dissolved and liquid organic compounds
Disease-causing organisms
Inorganic solids and dissolved elements
Thermal energy |
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Term
| What is one positive thing about sewage being added to our waters? |
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Definition
| The nutrients in the waste can promote the growth of aquatic plants. |
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Term
| What, or who, is mainly responsible for the pollution of our waters? |
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Definition
| Humans have a big impact on the pollution of our waters. Some examples include oil spills, sewage, pesticides, and mining. |
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Term
| Explain the impact of disease-causing organisms. |
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Definition
| These organisms lead to the outbreak of diseases to animals which drink the water the organisms live in. |
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Term
| What is one way to identify water quality and pollution? |
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Definition
| The abundance of trout can indicate high levels of dissolved oxygen, while, an abundance of carp and catfish indicates lower level oxygen levels. |
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Term
| How do human communities deal with reducing land pollution? |
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Definition
| Regulations exist to control what can be dumped and what cannot, recycle programs are in place, and special disposal sites are provided for hazardous wastes. |
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Term
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Definition
| Reduce, Reuse, and Recycle. |
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Term
| Name three impacts of land pollution. |
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Definition
Possible answers:
Reproduction problems for animals, plant growth reduced,seeping into the soil,consumes space, methane gas, pollutes air, leads to animals in urban areas, cancer in animals, affects the food chain. |
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Term
| Name the three types of land pollutants. |
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Definition
| Hazardous wastes, radioactive wastes, and solid wastes. |
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Term
| Give some examples of hazardous wastes. |
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Definition
Examples may include:
fire retardants, electrical transformers, hydraulic systems, pest control, coal or copper mining. |
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Term
| Explain why it is so difficult to find the source of air and water pollution. |
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Definition
| Pollution in water can drift as far as thousands of miles away, and pollution in air are blown to other areas around the world. The sources are near impossible to find, because the pollutants are too spread out. |
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Term
Copy this question down for a prize! First come first serve only!
(Flip the card) |
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Definition
| WHEN DOES THE NARWHAL BACON? |
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