chapter 11

Question 1

river system

Answer 1

Network formed from streams and rivers moving across the land

Question 2

groundwater

Answer 2

Water found beneath earths surface in spaces of sediment and rock formations

Question 3

aquifer

Answer 3

In underground formation that holds groundwater

Question 4

porosity

Answer 4

Percentage of the total volume of a rock that has spaces

Question 5

permeability

Answer 5

Ability of rock or soil to allow water to flow

Question 6

recharge zone

Answer 6

Area of earths surface were water percolates into an aquifer

Question 7

potable

Answer 7

Water that is safe to drink

Question 8

pathogen

Answer 8

Organisms that cause illness or disease

Question 9

dam

Answer 9

Structure built across rivers to contain the flow

Question 10

resovoir

Answer 10

And artificial lake formed behind a dam

Question 11

desalination

Answer 11

Process of removing salt from saltwater

Question 12

water pollution

Answer 12

Introduction of chemical/physical/biological agents in water that degrades water quality and harms dependent organisms

Question 13

point-source pollution

Answer 13

Pollution discharged from a single source

Question 14

nonpoint-source pollution

Answer 14

comes from many different sources

Question 15

wastewater

Answer 15

Water that contains waste from home or industry

Question 16

artificial eutrophication

Answer 16

accelerated eutrophication do to phosphorus and nitrogen entering water from sewage and fertilizer runoff

Question 17

thermal pollution

Answer 17

Temperature of a body of water increases

Question 18

biomagnification

Answer 18

Build up of pesticide in an organisms tissue as it is passed on from generation to generation

Question 19

water treatment steps

Answer 19

Filter, coagulation, filter, chlorination, aeration, additional treatment

Question 20

surface water

Answer 20

Is fresh water on earth surface