Components of the Earth System

Which sphere can be described as the solid exterior and interior of Earth?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

Which describes all of the water on Earth, solid, liquid, and gas?

• Geosphere

• Hydrosphere

• Atmosphere

• Biosphere

97% of the water on earth exists as

• Saltwater

• Lakes and Rivers

• Groundwater

• Water Vapor

The biosphere contains

• All life on Earth

• All life, except bacteria

• All plant life

• Animal life and plant life

Which percent of the Earth's water is available as liquid freshwater?

• 3%

• 1%

• 15%

• 97%

Cryosphere encompasses

• polar regions

• mountain tops

• ice shelves

• all of the above

Freshwater is found in

• Rivers and Streams

• Aquifers

• Lakes and Ponds

• all of the above

The most abundant gas in the atmosphere is

• Nitrogen

• oxygen

• Hydrogen

• Carbon Dioxide

Which is not a function of the atmosphere

• Keeps us warm

• allows organisms to cycle oxygen

• contains all life on Earth

• allows organisms to cycle carbon dioxide

Which of the following is wrong about the Water Cycle?

• Water evaporates from the hydrosphere to the atmosphere

• Water falls from the atmosphere to the geosphere

• The biosphere does not play an important part in the cycle

• It uses all four spheres of Earth