Term
| What produces a variety of weather ? |
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Definition
| The combination of Earth's motions and energy from the sun produce variety of weather |
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Term
| What is climate based on ? |
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Definition
| Climate is based on observations of weather that have been collected over many years |
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Term
| What is air a mixture of ? |
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Definition
| Air is a mixture of different gases and particles |
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Term
| What two gases make up 99 percent of dry air ? |
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Definition
| Nitrogen and oxygen make up 99 percent of dry air |
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Term
| What gas plays a significant role in heating the atmosphere ? |
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Definition
| Carbon dioxide heat the atmosphere |
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Term
| What is the source of all clouds and precipitation ? |
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Definition
| Water vapor is the source of all clouds and precipitation |
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Term
| What are some particles that remain suspended for long periods of time ? |
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Definition
| Sea salts from breaking waves,fine soil blown into the air,smoke and soot from fires,pollen and microorganisms lifted by the wind,and ash and dust from volcanic eruptions |
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Term
| When do oxygen atoms split into single atoms of oxygen? |
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Definition
| They split when they absorb ultraviolet radiation emitted from the sun |
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Term
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Definition
| Ozone absorbs harmful UV radiation from the sun.Our planet would be uninhabitable for many living organisms if ozone wasn't here |
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Term
| What accounts for nearly half the primary pollutants by weight ? |
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Definition
| Emissions from transportation vehicles |
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Term
| What are secondary pollutants ? |
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Definition
| They are not emitted directly into the air.They form in the atmosphere when reactions take place among primary pollutants and other substances. |
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Term
| What are photochemical reactions ? |
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Definition
| Reactions triggered by strong sunlight |
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Term
| What is atmospheric pressure ? |
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Definition
| Atmosphere pressure is simply the weight of the air above |
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Term
| How many layers is the atmosphere divided into ? |
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Definition
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Term
| In what layer do most weather phenomena occur ? |
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Definition
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Term
| Where does most energy that drives weather and climate com from ? |
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Definition
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Term
| What creates winds and dives the ocean's currents ? |
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Definition
| It is unequal heating of Earth that creates winds and drives the ocean currents.These movements transport heat from the tropics toward the poles in an attempt to balance energy differences |
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Term
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Definition
| Rotation is the spinning of Earth on its axis. |
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Term
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Definition
| Revolution is the movement of Earth in its orbit around the sun |
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Term
| What are the degrees the Earth is tilted ? |
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Definition
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Term
| What is the length of daylight determined by ? |
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Definition
| It is determined by Earth's position in orbit |
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Term
| What are the three mechanisms for energy transfer ? |
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Definition
| Conduction,convention,and radiation |
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Term
| What can radiant energy travel through ? |
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Definition
| Radiant energy can travel through the vacuum of space |
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Term
| Do hot or cold objects radiate more energy ? |
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Definition
| Hotter objects radiate more total energy per unit area than colder objects do |
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Term
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Definition
| Reflection occurs when light bounces off an object |
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Term
| Does land or water heat to higher temperature faster ? |
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Definition
| Land heats more rapidly and to higher temperatures than water |
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Term
| What is a coast called in which winds blow from the ocean onto the shore ? |
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Definition
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Term
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Definition
| Albedo is the fraction of the total radiation that is reflected by any surface |
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Term
| What does the extent of cloud cover influence ? |
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Definition
| By reducing the amount if incoming solar radiation,the maximum temperatures on a cloud-covered day will be lower than on a day when the clouds are absent and the sky is clear |
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Term
| What types of lines connects points of the same temperature ? |
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Definition
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