Hydrosphere/Oceans

Which of the following contains most of the water on Earth?

• The Oceans

• Watersheds

• The atmosphere

• Ice and Aquifers

Which would greatly reduce local water availability?

• A flood

• A drought

• a hurricane

Which percentage represents the amount of Earth’s water that is found in oceans?

• 3%

• 71%

• 97%

Which percentage represents the amount of freshwater on Earth?

• 3%

• 23%

• 71%

Which best describes the role of the water cycle?

• circulates existing water on Earth

• reduces pollution in most of the water

• increases usable supply of Earth’s water

Which best allows humans to utilize water as a resource?

• pollution laws

• local geography

• energy conservation

Which most likely causes the rate of ground water movement to change?

• the rock material through which the water is moving

• the type of plants under which the water is moving

• the time of day

Which most likely causes land that water drains into to form a watershed?

• The ground is saturated or permeable.

• The ground is saturated or impermeable.

• The ground is unsaturated or permeable.

Which best describes the importance of an aquifer?

• It holds uncontaminated ground water for human consumption.

• It supplies all water for lakes and rivers

• It provides water for oceans.

Where is most of Earth’s water found?

• Lakes

• Oceans

• Streams