Hydrosphere

Front

Which is most likely an example of point source pollution? Options: fertilizer sprayed onto a field, water runoff from a city street, a pipe flowing into a river

Back

a pipe flowing into a river

Front

A new golf course is built next to a river. Over the past several months, the nitrate levels of the water in the river have been increasing. Which best explains the cause of the increasing nitrate levels? Options: increased growth of algae, decreased biodiversity, runoff from fertilizer

Back

runoff from fertilizer

Front

Where does most fresh water exist? Options: ice caps, lakes, and streams; glaciers, rivers, and oceans; aquifers, ice caps, and glaciers.

Back

aquifers, ice caps, and glaciers

Front

Which best explains what happens to nutrients in the ocean as a result of upwelling?

Back

Upwelling carries nutrients to the surface of the ocean.

Front

An area of land that drains into a body of water.

Back

watershed

Front

The change of water from a liquid to a gas.

Back

evaporation

Front

How much of the earth's water is freshwater?

Back

3 %

Front

Ocean's cover what percent of the Earth's surface?

Back

70 %

Front

El Nino is characterized by ___ water temperatures in the Pacific Ocean.

Back

warm

Front

La Nina is characterized by ___ water temperatures in the Pacific Ocean.

Back

cool