Hydrosphere Unit Test

Which best explains why all of the earth's freshwater is not able to become drinking water for humans?

• most freshwater is in estuaries

• most freshwater is frozen

• most freshwater is stuck underground

How can upwellings improve fishing for ocean fisherman?

• they cause the ocean water to get warmer

• they cause ocean currents to remain calm

• they bring nutrients from the cold, deep ocean waters

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If a lake has excess levels of phosphates and nitrates in its water, what will most likely result?

• the temperature of the lake water will decrease

• the growth of algae in the lake will increase

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What effect does the water cycle have on the total amount of water on earth?

• total amount of water on earth is constantly decreasing

• total amount of water on earth remains relatively constant

Tags

NGSS.MS-ESS2-4

Which characteristic of water quality provides the most information about the health of a water system?

• temperature

• concentration of heavy metals

• presence of indicator species

Where is most of the earth's freshwater located?

• in the clouds

• in the ice caps

• in the ocean

• in the ground

Tags

NGSS.MS-ESS2-4

An increase in ocean acidity negatively affects the plankton population. Which best describes the effect this will have on marine animal populations?

• Marine animal populations will decrease because of less habitat spaces within the ocean ecosystem

• Plankton serves as the base of the ocean food chain, and marine animal populations will decrease once the availability of this food resource decreases.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which best describes 97% of the Earth’s water?

• It is stored in aquifers (groundwater storage in rocks)

• It is stored in polar ice caps

• It exists in the form of saltwater in the ocean

Which best describes how groundwater is obtained from an aquifer?

• by pumping water into a river basin

• by drilling a well below the water table

• by digging into unsaturated flood zones

Which best explains how a watershed compares to a river basin?

• A watershed is a ridge of land separating bodies of water, and a river basin flows over the ground surface

• A watershed is a land area supplying water to small rivers, and a river basin is comprised of many interconnected watersheds

Tags

NGSS.MS-ESS2-4