Ch. 11 Key Terms

Question 1

surface water

Answer 1

fresh water on Earth’s land surface

Question 2

river system

Answer 2

streams and rivers which move across the land

Question 3

watershed

Answer 3

area of land that is drained by a river

Question 4

groundwater

Answer 4

water that is found beneath earth’s surface

Question 5

aquifer

Answer 5

underground formation that contains groundwater

Question 6

porosity

Answer 6

percentage of total volume of a rock that has spaces

Question 7

permeability

Answer 7

ability for rocks/sediment to allow water to flow through it

Question 8

recharge zone

Answer 8

area of Earth’s surface from which water percolates down into an aquifer

Question 9

potable

Answer 9

safe to drink water

Question 10

pathogen

Answer 10

organisms that cause illness or disease

Question 11

dam

Answer 11

built across rivers to control the flow

Question 12

reservoir

Answer 12

artificial lake

Question 13

desalination

Answer 13

process of removing salt from saltwater

Question 14

water pollution

Answer 14

introduction to chemical, physical r biological agents into water

Question 15

point-source pollution

Answer 15

pollution discharged from a single source

Question 16

nonpoint-source pollution

Answer 16

runoff pollution, come from many different sources

Question 17

wastewater

Answer 17

water that contains waste

Question 18

artificial eutrophication

Answer 18

inorganic plant nutrients enter the water from sewage and fertilizer runoff

Question 19

thermal pollution

Answer 19

power plants and other industries use water in their cooling systems.

Question 20

biomagnification

Answer 20

organism stores the pesticide in its tissue and the concentration of the pesticide that is passed onto the next organism in the food chain increases.