Unit 5 Atmosphere Review

Which gas in the atmosphere protects living things from ultraviolet light?

• Carbon dioxide

• Ozone

• Oxygen

• Water vapor

Which gas is found in the greatest abundance in the modern atmosphere?

• Oxygen

• Helium

• Hydrogen

• Nitrogen

Which gas was lacking from the ancient atmosphere?

• Oxygen

• Helium

• Hydrogen

• Nitrogen

Which layer of the atmosphere is the thickest layer, with highest pressure and decreasing temperature? It is where all plants and animals live.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere contains about 19% of the atmosphere and has an increasing temperature caused by ozone-absorbing ultraviolet light?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere is very thin with decreasing temperatures and the coldest in the atmosphere>

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere is also called the upper atmosphere—has increasing temperatures (high temperatures and thin air that feels cold), and has the ionosphere? Aurora Borealis can be seen in this layer.

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which layer of the atmosphere is the outermost region where atoms escape into outer space?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

• Exosphere

Which of the following was a major source of atmospheric oxygen?

• Outgassing

• Photosynthesis

• Decomposition of water

• Volcanic eruptions

During the day, the wind blows onshore at the beach. What is this called?

• Sea breeze

• Land breeze

• Monsoon

• Global wind