Unit 4 Test: Atmosphere (and a little Hydrosphere)

What Atmospheric Layer can you find the Ozone Layer in?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which layer is the closest to Earth's surface?

• Exosphere

• Stratosphere

• Troposhere

• Mesosphere

Which BEST explains why air temperatures near mountaintops are often much colder than air temperatures near sea level?

• Large amounts of snowfall decrease the temperature.

• Air near mountaintops is less dense.

• Strong winds near mountaintops decrease temperatures

• The lack of vegetation at sea level allows the ground to absorb more heat.

Which gas is most abundant in Earth’s atmosphere?

• oxygen

• nitrogen

• water vapor

• carbon dioxide

An increase in carbon dioxide in the atmosphere is associated with an increase in global temperature. Which property of carbon dioxide is responsible for this temperature increase?

• Carbon dioxide transmits more sunlight than other atmospheric gases.

• Carbon dioxide efficiently turns sunlight into heat.

• Carbon dioxide keeps heat in the atmosphere from escaping into space.

• Carbon dioxide stores solar energy in chemical bonds.

What does ozone in the atmosphere do?

• It absorbs and traps heat energy.
• It provides a place for water vapor to condense.
• It protects against harmful UV radiation.
• It helps plants grow.

The mixture of gases that surrounds Earth is the ______________.

• atmosphere

• air pressure

• troposphere

• stratosphere

What is climate?

• The daily weather changes of an area.

• The average weather of a specific area.

Which of the following is contributing to an increase in carbon dioxide in the atmosphere?

• deforestation
• photosynthesis
• oceans
• all of the above

Do we need greenhouse gases on Earth?

• Yes - they keep the Earth warm

• Yes - they keep all the gases on our planet

• No - they only cause terrible climate change

• No - they only block some of the Sun's rays