The Atmosphere U3 L1

What is the Earth’s Atmosphere ?

• The solid layer surrounding Earth

• The liquid layer surrounding Earth

• The gaseous layer surrounding Earth

• The mixture of gases and small particles

What is the most abundant gas in the Earth’s Atmoshpere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Water Vapor

Which of the following is NOT a function of the Earth’s atmosphere .

• Protecting us from the Sun’s harmful rays

• Maintaining the right temperature range for life

• Providing oxygen for breathing

• Preventing the Earth from Rotating

What are small particles found in the atmosphere

• Dust , Volcanic ash , sea salt , and smoke

• Oxygen , Nitrogen , and carbon dioxide

• Water Vapor , clouds , rain

• The ozone layer and the ionosphere

What is the percentage of oxygen in the Earth’s atmosphere ?

• 21%

• 78%

• 1%

• 50%

Explain the role of water Vapor in the Earth’s atmosphere

What are the three main layers of the Earth’s atmosphere ?

How does the ozone layer protect life on Earth ?

What is the greenhouse effect and how does it impact Earth’s temperature?

How does human activity affect the Earth’s atmosphere?