Unit 4 1st Semester Exam Review

Front

What are the layers of the atmosphere in order from Earth's surface upward?

Back

Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere.

Front

What happens to the energy stored in fossil fuels when they are burned?

Back

It is released as heat and light energy.

Front

What is convection in an ecosystem?

Back

Warm air rising and cooler air sinking, creating currents.

Front

How does the sun transfer heat to Earth?

Back

By radiation in the form of sunlight.

Front

How does convection contribute to temperature differences in a forest?

Back

Warm air rises, creating cooler temperatures near the ground.

Front

Define Troposphere.

Back

The lowest layer of Earth's atmosphere, where weather occurs and where most of the mass of the atmosphere is found.

Front

What is Stratosphere?

Back

The layer of the atmosphere above the troposphere, characterized by a temperature increase with altitude and containing the ozone layer.

Front

Explain Mesosphere.

Back

The layer of the atmosphere above the stratosphere, where temperatures decrease with altitude and meteors burn up upon entering.

Front

What is Thermosphere?

Back

The layer of the atmosphere above the mesosphere, characterized by very high temperatures and the presence of ionized gases.

Front

Define Exosphere.

Back

The outermost layer of Earth's atmosphere, where atmospheric particles are so sparse that they can travel hundreds of kilometers without colliding with one another.