6.3 Photochemical Smog Question Preview (ID: 56967)


Environmental Systems And Societes Photochemical Smog. TEACHERS: click here for quick copy question ID numbers.

___ are used on factory stacks to remove gases and particulates.
a) Filters
b) Scrubbers
c) Emission reducers
d) Filter Strips

An air pollution prevention mechanism found in vehicles is a ___.
a) Combustion chamber
b) Scrubber
c) Electrostatic precipitator
d) Catalytic converter

A primary pollutant is one that ___.
a) is put directly into the air by human activities
b) reacts with other primary pollutants
c) has rainbows and sunshine
d) starts with a prime number

Which of the following in not an example of VOCs (Volatile Organic Compounds) ?
a) paint and paint thinners
b) gasoline
c) smog
d)

Smog or ground ozone forms in the troposphere. Which pollutants are most responsible for photochemical smog or ground ozone?
a) sulfur and particulate matter
b) carbon monoxide and carbon dioxide
c) volatile organic compounds (VOCs) and nitrogen oxides
d) none of these answers are correct

Which product of incomplete combustion gives photochemical smog its yellowish color?
a) PANs
b) VOCs
c) ozone (O3)
d) nitrous oxides (NOx)

What are 4 characteristics of urban areas with high levels of photochemical smog?
a) Calm winds, dry weather, sunny, many industries and vehicles
b) Located in a basin or surrounded by mountains
c) High winds, wet weather, cloudy, many industries and vehicles
d) Located in a basin or surrounded by mountains, calm winds, dry weather, sunny, many industries and vehicles

The principal component of photochemical smog.
a) Pb
b) SO2
c) CO
d) O3

A smog forming chemical
a) NOx
b) Pb
c) CO
d) VOCs

A smog forming group of molecules
a) PM (particulate matter)
b) CO
c) VOCs
d) Pb

Source: burning of wood, diesel and other fuels, agriculture, unpaved roads. | Health effects: nose and throat irritation, lung damage, bronchitis | Environmental effects: the main cause of haze that reduces visibility
a) VOCs
b) particulate matter (PM)
c) O3
d) SO2

What is the most important thing in a photochemical reaction?
a) sunlight
b) pressure
c) temperature
d) catalyst

The amount of primary pollutants in the air increases during ___.
a) sunlight
b) night time
c) high traffic
d) low traffic

Ozone and acid rain are both pollutants formed through reactions in the atmosphere. This makes them ___.
a) primary air pollutants
b) atmospheric transport
c) secondary air pollutants
d) atmospheric deposition

Industrial smog differs from photochemical smog because ___.
a) it comes from factories and not only combustion in motors
b) it is formed from PANs and VOCs
c) it forms from smoke and sulfur dioxide emissions mixing with fog
d) it only forms in dry, sunny areas

Which weather phenomena would be expected above the city found within a sunny, dry topographic basin?
a) orographic lifting
b) reverse convection
c) temperature inversion
d) photochemical lifting

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