chapter 12

Question 1

air pollution

Answer 1

the presence in or introduction into the air of a substance which has harmful or poisonous effects

Question 2

primary pollutant

Answer 2

A secondary pollutant is not directly emitted as such

Question 3

smog

Answer 3

is air pollution that reduces visibility

Question 4

temperature inversion

Answer 4

the action of inverting something or the state of being inverted

Question 5

sick-building syndrome

Answer 5

the action of inverting something or the state of being inverted

Question 6

asbestos

Answer 6

A lung disease caused by breathing in particles

Question 7

decibel

Answer 7

a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale

Question 8

acid precipitation

Answer 8

having increased acidity caused by environmental factors

Question 9

pH

Answer 9

the acidity or alkalinity of a solution

Question 10

acid shock

Answer 10

A sudden increase in the level of acidity of surface waters

Question 11

secondary pollutant

Answer 11

Pollutants that are formed in the lower atmosphere by chemical reactions