Unit 4 Earth's Major System

Which gas in our atmosphere is most abundant?

• Argon
• Oxygen
• Nitrogen
• Carbon Dioxide

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

• 1%
• 21%
• 78%
• 90%

In which layer of the atmosphere does weather occur?

• Thermosphere/Exosphere

• Troposphere

• Stratosphere

• Mesosphere

Tags

NGSS.MS-ESS2-5

Which layer of Earth's atmosphere contains the greatest percentage of gases?

• Thermosphere/Exosphere

• Troposphere

• Stratosphere

• Mesosphere

What is the outer most main layer of Earth's atmosphere?

• Thermosphere/Exosphere

• Troposphere

• Stratosphere

• Mesosphere

Which layer of the atmosphere contains the protective ozone layer?

• Thermosphere/Exosphere

• Troposphere

• Stratosphere

• Mesosphere

What is the correct order of atmosphere layers from the Earth to outer space?

• exosphere - mesosphere - stratosphere - thermosphere - troposphere

• mesophere - stratosphere - troposphere - thermosphere - exosphere

• stratosphere - mesosphere - exosphere - thermosphere - troposphere

• troposphere - stratosphere - mesosphere - thermosphere - exosphere

Earth is surrounded by an envelope of gases called the

• atmosphere

• biosphere

• hydrosphere

• lithosphere

Tags

NGSS.MS-ESS2-5

Which layer of the atmosphere has the coldest average temperature?

• Thermosphere/Exosphere

• Troposphere

• Stratosphere

• Mesosphere

Which statement best describes the ozone layer surrounding Earth?

• It helps reduce the amount of ultraviolet radiation reaching the surface of earth

• It increases the amount of nitrogen in the troposphere of Earth.

• It forms a magnetic field in the mesosphere of Earth.

• It prevents the formation of severe storms in the stratosphere of Earth.