Exammy Numero 4

Question 1

Green Chemistry

Answer 1

maximizes its benefits, reducing adverse impacts

Question 2

5 spheres of our environment

Answer 2

atmosphere, hydrosphere, geosphere, anthrosphere, biosphere.

Question 3

Environmental chemistry

Answer 3

studies sources, reactions, transport, and effects of chemistry (and also technology) on water, air, soil.

Question 4

Industrial ecology

Answer 4

considers industrial systems in a manner analogous to natural ecosystems.

Question 5

how is oxygen in the atmosphere consumed?

Answer 5

Burning of hydrocarbons and other carbon-containing fuels.

Question 6

Air pollution

Answer 6

introduction of harmful substances in the atmosphere

Question 7

Primary pollutants

Answer 7

pollutants released straight from the source

Question 8

secondary pollutants

Answer 8

pollutants that form after reactions in the atmosphere with primary pollutants

Question 9

Primary pollutants that cause the most problems

Answer 9

carbon monoxide
VOCs
Nitrogen oxides
Sulfur dioxides
Particulate material

Question 10

Primary standards

Answer 10

standards set to prioritize human health

Question 11

secondary standards

Answer 11

standards set to take care of property and environmental damage

Question 12

two criteria pollutants most responsible for health problems

Answer 12

ground level ozone, particle pollution

Question 13

THE 6 CRITERIA POLLUTANTS:

Answer 13

carbon monoxide
ground level ozone
nitrogen dioxide
sulfur dioxide
lead
particulate material

Question 14

Fine particles

Answer 14

Come from combustion, are 2.5 micrometers

Question 15

coarse particles

Answer 15

come from road materials, are 10 micrometers

Question 16

toxic air pollutants

Answer 16

pollutants known to cause cancer

Question 17

examples of toxic air pollutants

Answer 17

benzene, methelyne chloride, perchloroethelyne.

Question 18

point source of polution

Answer 18

large emitters

Question 19

nonpoint sources

Answer 19

smaller, but more numerous pollution emitters

Question 20

photochemical smog

Answer 20

nitrous oxides, oxygen, and VOCs react with sunlight to form a thick brown smog in the summer

Question 21

industrial smog

Answer 21

mix of soot, particulate matter (calcium sulfate, sodium chloride), and sulfur dioxide gas

Question 22

particulates

Answer 22

atmospheric aerosols less than 100 micrometers in diameter

Question 23

dispersion aerosol

Answer 23

created by grinding solids

Question 24

condensation aerosols

Answer 24

condensation of liquids

Question 25

fly ash

Answer 25

biproduct of finely divided coal

Question 26

sedimentation

Answer 26

when particles are allowed to settle by gravity in large chambers

Question 27

inertial mechanisms

Answer 27

spin gas around in a chamber and trap particles by centripetal force

Question 28

electrostatic precipitators

Answer 28

use high voltage to input negative charge onto particles, which are then attracted to the positively charged walls.

Question 29

some human sources of VOCs

Answer 29

paints, paint strippers, varnishes, cleaning products, degreasers, cosmetic products. and FUELS

Question 30

which types of particles are considered harmful by EPA?

Answer 30

fine particles and microparticles

Question 31

what gas has lowest GWP

Answer 31

CH4