ch 11

Question 1

surface water

Answer 1

is fresh water on earth land surface

Question 2

River system

Answer 2

as screams and rivers move across the land, they form a flowing network of water

Question 3

watershed

Answer 3

The area of land that is drained by a river

Question 4

ground water

Answer 4

water that is found beneath earths surface in the spaces in sediment and rock formation

Question 5

Aquifer

Answer 5

an underground formation that contains ground water

Question 6

porosity

Answer 6

is the percentage of the total volume of a rock that has space pores

Question 7

permeability

Answer 7

The ability of rock or soil to allow water to flow

Question 8

recharge zone

Answer 8

and area of earths surface from which water pre-coats down into an aquifer

Question 9

potable

Answer 9

Most water must be treated to make or safe to drink

Question 10

pathogen

Answer 10

found in polluted water, but they can also occur naturally and ground water

Question 11

dam

Answer 11

are built across rivers to control the rivers flow

Question 12

reservoir

Answer 12

when a river is damned, in article lake, is formed behind the dam

Question 13

desalination

Answer 13

is the process of removing salt from salt water

Question 14

water pollution

Answer 14

Is the introduction of chemical, physical, or biological agents into water that degrade water quality and harm the organisms that depend on the water

Question 15

Point-source pollution

Answer 15

which is pollution discharged from a single source

Question 16

Non-point source solution

Answer 16

also known as runoff pollution, comes from many different sources that are often difficult to identify

Question 17

Waste water

Answer 17

is water that contains waste from homes or industry

Question 18

artificial eutrophication

Answer 18

fertilizer from forms, lawns, and gardens is the largest source of nutrients that cause artificial eutrophication

Question 19

thermal pollution

Answer 19

can occur when power plants and other industries use water in their cooling systems and then discharge the warm water into a lake or river

Question 20

biomagnification

Answer 20

each organism stores the pesticide and it’s tissue in the concentration of the pesticide that is passed on to the next organism in the food chain increases