Atmosphere Practice Test

Which layer of the atmosphere does weather take place? 

• Mesosphere 

• Troposphere

• Thermosphere

• Exosphere

• Stratosphere

Coal is mostly carbon. When coal is burned, it reacts with oxygen. The carbon dioxide produced is released into the atmosphere. The chemical reaction for coal burning is shown. ​

​C + O₂ ​→ CO_{2 ​} ​

Based on the model shown, which statement correctly describes what may happen to the carbon dioxide in the atmosphere?

• Carbon dioxide decomes spolid and falls to the ground

• Carbon dioxide burns in the atmosphere

• Carbon dioxide is used by plants in photosynthesis

• Carbon dioxide is breathed in by animals and humans

In which layer of the atmosphere will you find the ozone layer?

• Thermosphere

• Litosphere

• Troposphere

• Stratosphere

The atmosphere is essential to survival for all living things. 

• True

• False

Which of the following factors is used to divide the atmosphere into layers?

• Altitude

• Density

• Air pressure

• Air temperature

78% of Earth's atmosphere is made up of

• Oxygen

• Hydrogen

• Nitrogen

• Carbon dioxide

Most airplanes fly in the ___________________ layer of the atmosphere to avoid weather. 

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

Carbon dioxide is REMOVED from the atmosphere through which process?

• Cell respiration

• Photosynthesis

• Conbustion

• Decomposition

Why does Earth have an atmosphere but Mars and Mercury do not?

• No liquid water exists on Mars and Mercury

• The gravitational pull of Mars and Mercury is too small

• Ultraviolet radiation from th sun burn away the atmospheres of Mars and Mercury

Why is it good that our atmosphere traps some of the heat?

• IBecause the atmosphere gives us Co2 to breathe.

• The trapped heat cleans up some of the pillution caused by burning fossil fuels.

• The trapped heat makes the planet too warm for water to stay in a frozen state, so it will all be liquid.

• The trapped heat makes Earth warm enough for life to exist.