Test Review (Hydrosphere Part 1)

What step in the water treatment process involves the removal of sediment?

• Aeration

• Desalination

• Disinfection

• Filtration

Which best explains why water quality standards have been created to ensure heavy metals in water are kept to a minimum?

• Heavy metals are linked to toxicities in humans and large amounts of heavy metals should not be consumed.

• Heavy metals can strain ceramic surfaces in homes and cost the homeowners hundreds in repairs.

• Heavy metals can cause discoloration of water and can cause a strong, unpleasant odor.

• Heavy metals can corrode pipes and cause problems with internal plumbing.

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.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Which best explains a way of protecting water for human consumption?

• Ban the use of lakes and rivers for recreation

• Allow dumping of some waste into lakes and rivers

• Reduce the use on lakes and rivers for irrigation of crops.

• Improve water quality standards for industries located on lakes and rivers.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

The Environmental Protection Agency was assigned which task?

• setting standards and governing the cleanliness of water used by Americans

• setting standards and governing the highways and interstates in the United States

• setting standards and governing the use of national parks and monuments in the United States

• setting standards and governing the civil and commercial air transportation throughout America

Tags

NGSS.MS-ESS3-3

Which best describes the amount of Earth's total water supply that is usable freshwater?

• less than 1%

• less than 25%

• greater than 50%

• greater than 75%

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

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 dyring in estuaries and oceans

• from rivers and streams flowing into estuaries and oceans

• from asteroids and comets impacting Earth at estuaries and oceans

Which accurately describes the relationship between nutrients and life forms in an estuary?

• As nutrients increase, the number of life-forms increases.

• As nutrients decrease, the number of life-forms increases.

• As nutrients increase, the number of life-forms stays the same.

• As nutrients decrease, the number of life-forms stays the same.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

Which of these is a freshwater reservoir?

• Gulf of Mexico

• Pacific Ocean

• Atlantic tidal basin

• Antarctic polar ice