Hydrosphere Practice Test

Which will most likely result if there is increased upwelling in a coastal area?

• more aquatic life

• less nutrients

• High water temperature

• fewer nitrates

In which oceanic zone do clams and crabs survive by burrowing in the sand?

• oceanic

• open ocean

• intertidal

• deep ocean

The following image shows the various zones of the ocean. Which zone would you find hydrothermal vents?

• deep ocean

• surface zone

• shallow zone

• intertidal zone

Which are the most abundant dissolved gases in ocean water?

• nitrogen and carbon dioxide

• nitrogen and oxygen

• oxygen and hydrogen

• oxygen and carbon dioxide

Which contributes most in supporting life on the deep ocean floor?

• cold water temperatures

• extreme water pressure

• hydrothermal vents

• lack of predators

The graph shows the distribution of the freshwater resources of Earth. Which of these sources of fresh water corresponds to Source 1?

• groundwater

• atmospheric water

• frozen water

• surface water

Which is Earth’s largest source of drinkable water?

• lakes

• rivers

• oceans

• aquifers

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

• oceans

• watersheds

• atmosphere

• ice and aquifers

During a portion of the water cycle, water falls to Earth’s surface as precipitation. Some of this water runs off into channels and keeps moving until it ends up in the ocean.

Which BEST describes the water in the channels?

• lake

• aquifer

• wetland

• river

If a body of water has high turbidity levels, what can most likely be concluded?

• It has low pH

• It is unsafe to drink

• It is too hot to drink

• It contains unsafe chemicals