Eviro. Unit 8 Lesson 2
acid deposition - ANS the settling out of atmospheric acids onto land
\All modern cities have some level of _____ smog. - ANS photochemical
\Describe dry acid deposition. - ANS when acidic particles settle out of the atmosphere
onto the land
\Describe wet acid deposition - ANS when acid falls to the earth through precipitation
such as rain, sleet, snow, hail, or fog
\industrial smog - ANS smog that forms when soot combines with sulfur compounds and
water droplets in the air
\Is industrial smog more common in developed or developing countries? - ANS
developing
\photochemical smog - ANS smog that forms when UV light from the sun reacts with
pollutants in the air
\Select the five natural factors and and the correct descriptions of the factors that can
reduce air pollution. - ANS -Topography. Hills and mountains reduce the air flow into
surrounding valleys. This allows pollutants to accumulate closer to the ground.
-Grasshopper effect. The grasshopper effect occurs when air pollutants reach high
altitudes from tropical and temperate regions. These pollutants are then carried to the
poles, mostly during winter.
-Temperature inversions. Temperature inversions can trap pollutants near the surface of
the earth.
-Buildings. Buildings slow wind speed. This reduces the dilution and removal of
pollutants.
-Temperature. Higher temperatures increase chemical reactions which result in more
photochemical smog.
\Select the five natural factors and the correct descriptions of the factors that can reduce
air pollution. - ANS -Rain and snow. Precipitation can remove some air pollutants, which
is why rain is sometimes referred to as being "cleansing."
-Gravity. Heavier particles will settle out of the air onto the land due to gravity.
-Chemical reactions. Chemical reactions occur when primary pollutants react with water
vapor to form acid rain. When the acid rain falls, the air is cleaner.
-Wind. Wind can carry away air pollution.
acid deposition - ANS the settling out of atmospheric acids onto land
\All modern cities have some level of _____ smog. - ANS photochemical
\Describe dry acid deposition. - ANS when acidic particles settle out of the atmosphere
onto the land
\Describe wet acid deposition - ANS when acid falls to the earth through precipitation
such as rain, sleet, snow, hail, or fog
\industrial smog - ANS smog that forms when soot combines with sulfur compounds and
water droplets in the air
\Is industrial smog more common in developed or developing countries? - ANS
developing
\photochemical smog - ANS smog that forms when UV light from the sun reacts with
pollutants in the air
\Select the five natural factors and and the correct descriptions of the factors that can
reduce air pollution. - ANS -Topography. Hills and mountains reduce the air flow into
surrounding valleys. This allows pollutants to accumulate closer to the ground.
-Grasshopper effect. The grasshopper effect occurs when air pollutants reach high
altitudes from tropical and temperate regions. These pollutants are then carried to the
poles, mostly during winter.
-Temperature inversions. Temperature inversions can trap pollutants near the surface of
the earth.
-Buildings. Buildings slow wind speed. This reduces the dilution and removal of
pollutants.
-Temperature. Higher temperatures increase chemical reactions which result in more
photochemical smog.
\Select the five natural factors and the correct descriptions of the factors that can reduce
air pollution. - ANS -Rain and snow. Precipitation can remove some air pollutants, which
is why rain is sometimes referred to as being "cleansing."
-Gravity. Heavier particles will settle out of the air onto the land due to gravity.
-Chemical reactions. Chemical reactions occur when primary pollutants react with water
vapor to form acid rain. When the acid rain falls, the air is cleaner.
-Wind. Wind can carry away air pollution.
