| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
The ozone layer is in which of Earth's atmospheric layers?
troposphere |
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mesosphere |
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stratosphere |
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thermosphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a community |
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a biome |
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a food chain |
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a population |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
All surface water is part of the:
atmosphere |
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hydrosphere |
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lithosphere |
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geosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).
Water freezing or boiling is an example of which of the following?
sublimation |
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cooling |
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phase transition |
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heating |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
radiation |
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conduction |
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convection |
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reflection |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.