Exploring Earth's Atmosphere

What is the primary composition of Earth's atmosphere?

• Dust particles

• Gases

• Water vapor

• Rocks

Which layer of the atmosphere is closest to Earth?

• Exosphere

• Mesosphere

• Troposphere

• Stratosphere

What is the primary role of Earth's atmosphere?

• To provide oxygen

• To support plant growth

• To protect from solar radiation

• To enable space exploration

Where does most of Earth's weather occur?

• Stratosphere

• Mesosphere

• Thermosphere

• Troposphere

What is the significance of the troposphere's temperature decreasing with altitude?

• It supports aviation

• It allows for radio transmission

• It prevents meteors from entering

• It influences weather patterns

What is the main function of the ozone layer?

• Creating rain

• Producing oxygen

• Blocking ultraviolet rays

• Generating heat

Which layer extends up to 30 miles outward into space?

• Mesosphere

• Thermosphere

• Troposphere

• Stratosphere

Which layer of the atmosphere is the coldest?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Why is the mesosphere important for Earth's protection?

• It contains the ozone layer

• It burns up meteors

• It reflects sunlight

• It supports satellite orbits

At what temperature can the thermosphere reach?

• 100 degrees Fahrenheit

• 2700 degrees Fahrenheit

• -190 degrees Fahrenheit

• 500 degrees Fahrenheit