Earth's Systems and Atmospheric Layers Quiz

What is the Earth system considered to be?

• An open system

• A closed system

• An isolated system

• A dynamic system

Which of the following is NOT one of the main components of Earth's system?

• Geosphere

• Hydrosphere

• Lithosphere

• Atmosphere

What percentage of Earth's atmosphere is composed of nitrogen?

• Approximately 21%

• Approximately 78%

• Approximately 1%

• Approximately 0.04%

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Mesosphere

• Thermosphere

• Stratosphere

What is the basic source of freshwater on Earth?

• Oceans

• Glaciers

• Precipitation

• Groundwater

Which of the following is NOT a component of the cryosphere?

• Glaciers

• Sea ice

• Permafrost

• Coral reefs

What is the term for water moving across the surface of the land?

• Percolation

• Runoff

• Evaporation

• Transpiration

Which layer of the Earth is believed to be composed mainly of iron and nickel?

• Crust

• Mantle

• Core

• Asthenosphere

What is the approximate thickness of the continental crust?

• 5-7 km

• 10-15 km

• 30-70 km

• 100-150 km

Which of the following is NOT a characteristic of the troposphere?

• Contains most of Earth's weather phenomena

• Temperature increases with altitude

• Contains about 80% of atmospheric mass

• Extends from the surface to about 10-20 km altitude