Water Quality Review

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

• river

• aquifer

• wetland

Tags

NGSS.MS-ESS2-4

Which best explains how nutrients, salt, sediment and pollutants get into estuaries and oceans?

• From precipitation falling over the estuaries and oceans

• From organisms living and dying in estuaries and oceans

• From rivers and streams flowing into estuaries and oceans

• From asteroids and comets impacting Earth at estuaries and oceans

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

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

• more aquatic life

• less nutrients in the water

• higher water temperatures

• fewer nitrates

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

• oceanic

• intertidal

• deep ocean

• open ocean

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

• cold water temperatures

• extreme water pressure

• hydrothermal vents

• lack of predators

Which technology is most efficient in mapping large areas of the ocean floor?

• sonar

• robots

• depth gauge

• satellite imaging

A small city gets its drinking water from the river running through its center. This river is fed by rivers that flow down the mountains nearby. How would excessive rainfall in the mountains most likely affect the turbidity of this local water source?

• Heavy rainfall would decrease the turbidity of the river downstream.

• Heavy rainfall would increase the turbidity of the river downstream

• Heavy rainfall would increase the turbidity of only rivers upstream.

• Heavy rainfall would decrease the turbidity of only rivers upstream.

Which factors can have the greatest effect on the health of a river system?

• type of soil and salinity

• nitrate levels and turbidity

• human consumption and pH

• natural disasters and tidal change

Tags

NGSS.MS-ESS3-4

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

• It has a low pH.

• It is unsafe to drink.

• It is too hot to drink.

• It contains a lot of chemicals

Tags

NGSS.MS-LS1-5

Which best determines the health of a lake used as a source of freshwater?

• its depth and width

• its temperature and pH

• its location and depth

• its temperature and depth

Tags

NGSS.MS-LS1-5