chemistry quiz

what fraction of air is oxygen

• 75%
• 21%
• 50%
• 10%

distance of troposhere from earth is

• 200 to 300 kilometers
• 500 to 600 kilometers
• 50 to 100 kilometers
• 0 to 10 kilometers

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

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

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

What is the layer of the atmosphere where weather occurs?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which gas is responsible for the greenhouse effect?

• Carbon Dioxide

• Oxygen

• Nitrogen

• Argon

What is the layer of the atmosphere where meteors burn up?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Which gas is responsible for the depletion of the ozone layer?

• Carbon Monoxide

• Chlorofluorocarbons

• Methane

• Nitrous Oxide

What is the layer of the atmosphere where airplanes fly?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

amount of oxygen in deep see is

• very high
• moderate
• extremely high
• very low