(1)Earth's Atmosphere

Multiple Choice

Why is Earth's atmosphere essential for life on our planet?

• It provides oxygen for breathing

• It blocks harmful solar radiation and regulates temperature

• It creates the conditions necessary for life to thrive

• All of the above

Multiple Choice

Which gas makes up the largest percentage of Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Open Ended

Describe how the composition of Earth's atmosphere has changed from the primordial atmosphere to the present day.

Multiple Choice

Which atmospheric layer contains nearly all water vapor and is where all weather occurs?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

Multiple Select

Select all layers of the atmosphere where temperature increases with altitude due to absorption of solar radiation. (2 answers)

• Troposphere

• Stratosphere

• Thermosphere

• Exosphere

Multiple Choice

Which of the following are greenhouse gases?

• Carbon dioxide

• Methane

• Water vapor

• All answers are correct

Dropdown

Human activity affects the climate by releasing ​

Select answer

and other greenhouse gases into the atmosphere, which ​

Select answer

the Earth's temperature.

Multiple Choice

Which process in the atmospheric water cycle is responsible for converting liquid water into invisible vapor?

• Evaporation

• Condensation

• Precipitation

• Transpiration