Question 1:

Which gas makes up the majority of Earth's atmosphere?

Question 2:

Which layer of the atmosphere is closest to the Earth's surface?

Question 3:

Which layer of the atmosphere contains the ozone layer?

Question 4:

Which gas is responsible for absorbing and reflecting the majority of the Sun's ultraviolet radiation in the stratosphere?

Question 5:

Which layer of the atmosphere is characterized by increasing temperatures with altitude due to the absorption of solar radiation?