7.1 learnsmart

Question 1

of hydrosphere contained in the oceans

Answer 1

97%

Question 2

2.1%

Answer 2

amount of hydrosphere contained in ice caps and glaciersamount of hydrosphere contained in ice caps and glaciers

Question 3

0.31%

Answer 3

hydrosphere contained in groundwater

Question 4

0.15%

Answer 4

amount of hydrosphere contained in atmosphere

Question 5

0.1%

Answer 5

amount of hydrosphere contained in lakes

Question 6

0.003%

Answer 6

amount of hydrosphere contained in rivers and streams

Question 7

Which phrases best describe why a gentle rainfall is more beneficial to soil than heavy precipitation?

Answer 7

A gentle rainfall causes less erosion from runoff.

Heavy rainfall may not be able to infiltrate the ground.

Question 8

Rivers that flow into other streams are called

Answer 8

tributaries.

Question 9

Which is the term for all of the land area whose water drains into a stream system?

Answer 9

watershed

Question 10

Which is the method of transport for all particles small enough to be held up by the turbulence of a stream’s moving water?

Answer 10

suspension

Question 11

Which term is used to describe the sand, pebbles, and cobbles that a stream’s water can roll or push along the bed of the stream?

Answer 11

bed load

Question 12

Which unit is most commonly used to express the amount of dissolved material that water carries?

Answer 12

parts per million, ppm

Question 13

A floodplain develops when

Answer 13

excess water spills over the sides of a stream’s banks onto the broad, flat area that extends out from a stream’s banks.

Question 14

The measure of the volume of stream water that flows past a particular location within a given period of time is called

Answer 14

discharge

Question 15

When the water level in a stream rises higher than its banks, the river is said to be at

Answer 15

flood stage