The Atmospheric System

What gases predominantly make up the Earth's atmosphere?

• Nitrogen and oxygen

• Argon and neon

• Carbon dioxide and methane

• Hydrogen and helium

What is a phenomenon only related to the atmosphere?

• To provide minerals for the soil

• To shield Earth from meteorites

• To create weather patterns

• To support plant growth

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

• Troposphere

• Thermosphere

• Stratosphere

• Mesosphere

What happens to temperature as you move up through the troposphere?

• It remains constant

• It increases steadily

• It fluctuates randomly

• It decreases

What is the main role of stratospheric ozone?

• To absorb carbon dioxide

• To create weather patterns

• To absorb ultraviolet radiation

• To provide oxygen for respiration

At what altitude does the stratosphere extend up to?

• 10 km

• 100 km

• 50 km

• 80 km

What is the coldest part of the atmosphere?

• Mesosphere

• Troposphere

• Stratosphere

• Thermosphere

What phenomenon occurs in the thermosphere due to electrically charged particles?

• Weather patterns

• Jet streams

• Aurorae polaris

• Volcanic eruptions

What is the Karman Line recognized as?

• The lowest point of the mesosphere

• The highest point of the stratosphere

• The boundary between the atmosphere and space

• The boundary of the troposphere

Which layer of the atmosphere contains most of the atmospheric mass?

• Thermosphere

• Troposphere

• Stratosphere

• Mesosphere