Hydrosphere19

Which dissolved gases are most needed by plants and animals living in the ocean?

• nitrogen and oxygen

• oxygen and carbon dioxide

• carbon dioxide and nitrogen

• carbon monoxide and nitrogen

Which factor has the greatest effect on a community’s stores of fresh water?

• the location of the nearest ocean

• the average annual rainfall

• the location of the nearest mountain

• the average winter temperature

Where would the safest and least polluted water most likely occur?

• aquifer

• large river

• mountaintop snow

Which most likely has the highest number of contaminants in the water?

• a water system with moderate turbidity

• a water system with high turbidity

• a water system with low turbidity

• a water system with no turbidity

Which best describes the relationship between salinity levels and the amount of dissolved gases in ocean water?

• As salinity increases, the amount of dissolved gases increases.

• As salinity increases, the amount of dissolved gases decreases.

• As salinity decreases, the amount of dissolved gases decreases.

• As salinity decreases, the amount of dissolved gases remains the same.

Which of these is a freshwater reservoir?

• Gulf of Mexico

• Pacific Ocean

• Atlantic tidal basin

• Antarctic polar ice

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.

• lake

• aquifer

• wetland

• river

Which describes the hydrosphere?

• all of Earth’s organisms and the environments in which they live

• a layer of Earth’s atmosphere made up primarily of concentrated ozone

• all of the water in Earth’s oceans, lakes, seas, rivers, and glaciers, plus the water in the atmosphere

Which best describes how the oceans are connected to the water reserves on Earth?

• looding

• evaporation and precipitation

• tides, waves, and erosion of the seashores

How is satellite imagery beneficial when studying the hydrosphere?

• It allows scientists to sample the surface of the ocean floor.

• It allows scientists to explore the deepest parts of ocean water.

• It allows scientists to collect large amounts of bioindicator data.

• It allows scientists to obtain maximum coverage of the hydrosphere.