As human population increases exponentially, what happens to the amount of freshwater?

• it increases

• it decreases

• it stabilizes

• it increases then decreases

Tags

NGSS.MS-ESS3-4

High levels of which is likely to improve biotic index of a stream?

• algae growth

• decaying matter

• suspended solids

• dissolved oxygen

Which is the most common contamination source for freshwater resources?

• runoff

• digging wells

• melting of glaicers

• lightening

Tags

NGSS.MS-ESS3-4

Which is true of man-made dams?

• reduce risk of upstream flooding

• don't affect the character of the dammed river downstream

• located where they don't affect preexisting farms

• provide more dependable water resources for humans

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

How can you maximize freshwater resources?

• increased infiltration to fertilize crops

• reduced treatment by waste water treatment plant

• reduce measures to prevent arsenic contamination

• law regulating the amount of pollution dissolved in a river

Tags

NGSS.MS-ESS2-4

Which is a non-point source of pollution?

• toxic waste given off by a chemical research facility

• exhaust from car tailpipes

• emissions ejected from smokestacks

• fertilizers washed away from farmlands by runoff

Why are ocean current important to coastal regions?

• they produce high and low tides

• they can warm or cool the air temps

• they can vertically push warm water and nutrients up

• they increase the rate of precip. as cold water moves in

Tags

NGSS.MS-ESS2-6

What is true about seawalls?

• they protect coastal areas but cause erosion

• they don't protect coastal areas but reduce erosion

• they protect coastal areas and reduce erosion

• they don't protect coastal areas and cause erosion

What is formed when impermeable rock forces ground water to move up to the Earth's surface?

• spring

• aquifer

• geyser

• well

Tags

NGSS.MS-ESS2-4

What is a drawback to the extensive use of irrigation?

• crops don't receive sufficient water

• flooding increases

• groundwater levels decrease

• pollution increases

Tags

NGSS.MS-ESS2-4