Marine Science Unit 5 Part I

The planet's atmosphere is approximately _____ of mixed gases above Earth's land and water.

• 40 km

• 20 km

• 90 km

• 100 km

How many layers are in the atmopshere

• 2 Layers

• 7 Layers

• 4 Layers

• 5 Layers

Which one of these is NOT an Atmospheric Layer?

• Thermosphere

• Stratosphere

• Exosphere

• Photosphere

The troposphere ______ in temperature with an _____ in altitude.

• Increases, Decrease

• Decreases, Increase

Which layer of the atmosphere are ozone molecules found in?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What makes ozone effective in absorbing UV rays from the sun?

• They are closer to the sun, so they absorb UV naturally.

• Their chemical structure makes them ideal for UV absorption.

• They are unstable molecules.

• They are very nonreactive molecules.

Temperature ______ in the Stratosphere with ______ altitude.

• Increases, Increasing

• Increases, Decreasing

• Stays the Same, Increasing

• Stays the Same, Decreasing

Which of the following layers of the atmosphere contains 90% of the atmosphere's gas by mass?

• Thermosphere

• Stratosphere

• Troposphere

• Mesosphere

Which layer of the Atmosphere contains all weather?

• Mesosphere

• Stratosphere

• Troposphere

• Thermosphere

Temperature _______ in the Troposphere with _______ altitude.

• Increases, Increasing

• Decreases, Increasing

• Decreases, Decreasing

• Increases, Decreasing