CHAP.12

Question 1

air pollution

Answer 1

is a mixture of solid particles and gases in the air.

Question 2

primary pollutant

Answer 2

is an air pollutant emitted directly from a source.

Question 3

secondary pollutant

Answer 3

are pollutants which form in the atmosphere.

Question 4

smog

Answer 4

fog or haze combined with smoke and other atmospheric pollutants.

Question 5

temperature inversion

Answer 5

a reversal of the normal behaviour of temperature in the troposphere

Question 6

sick building syndrome

Answer 6

occupants complain of symptoms associated with acute discomfort, e.g., headache; eye, nose, or throat irritation; dry cough; dry or itchy skin; dizziness and nausea;

Question 7

asbestos

Answer 7

a heat-resistant fibrous silicate mineral that can be woven into fabrics, and is used in fire-resistant and insulating materials such as brake linings.

Question 8

decibel

Answer 8

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 9

acid precipitation

Answer 9

This can include rain, snow, fog, hail or even dust that is acidic.

Question 10

acid shock

Answer 10

can cause significant damage to freshwater species and habitats.

Question 11

pH

Answer 11

is a scale of acidity from 0 to 14.