Chemistry of the Atmosphere

What is the most abundant gas in the Earth's atmosphere?

• Nitrogen

• Oxygen

• Argon

• Carbon Dioxide

Fill in the blank: Ozone layer is located in the ________.

• troposphere

• mesosphere

• ionosphere

• stratosphere

Which gas is responsible for the greenhouse effect?

• Methane (CH4)

• Carbon dioxide (CO2)

• Nitrous oxide (N2O)

• Oxygen (O2)

What is the primary source of oxygen in the Earth's atmosphere?

• Meteor impacts

• Burning fossil fuels

• Volcanic eruptions

• Photosynthesis

True or False: Carbon monoxide is a greenhouse gas.

• True

• Sometimes true

• False

• Partially true

What is the chemical formula for ozone?

• O3

• N2O

• CO2

• H2O

What is the process by which plants release oxygen called?

• Respiration

• Transpiration

• Fermentation

• Photosynthesis

Which layer of the atmosphere contains the ozone layer?

• Stratosphere

• Mesosphere

• Exosphere

• Troposphere

What is the main component of air?

• Nitrogen

• Argon

• Carbon dioxide

• Oxygen

Fill in the blank: Nitrogen makes up approximately ________% of the Earth's atmosphere.

• 78

• 45

• 62

• 83