Download U.M.C. English II Language Coordination. Environmental

U.M.C.
Language Coordination.
Environmental Engineering reading
English II
Pre-reading. Match the words with the pictures.
1.-Heavy motor vehicle
2.-Smog
3.-Car exhaust
4.-Power plant
What Causes Smog?
Smog is the result of a set of complex photochemical reactions. It involves volatile organic
compounds (VOCs), nitrogen oxides and sunlight.
Smog-forming pollutants come from many sources such as automobile exhaust, power plants,
factories and many consumer products, including paint, hairspray, charcoal starter fluid, chemical
solvents, and even plastic popcorn packaging. In typical urban areas, at least half of the smog originators
come from cars, buses, trucks, and boats.
Major smog occurrences often relate to heavy motor vehicle traffic, high temperatures, sunshine,
and calm winds. Weather and geography affect the location and severity of smog. Because temperature
regulates the length of time it takes for smog to form, smog can occur more quickly and be more severe
on a hot, sunny day.
When temperature inversions occur (that is, when warm air stays near the ground instead of
rising) and the wind is calm, smog may remain trapped over a city for days. As traffic and other sources
add more pollutants to the air, the smog gets worse. Ironically, smog is often more severe farther away
from the sources of pollution, because the chemical reactions that cause smog take place in the
atmosphere while pollutants are drifting on the wind.
After Reading
I.-Match the words with their definitions.
1.-Inversion
2.-Volatile
3.-Severe
4.-Pollutant
____ The act of inverting.
____ Something that pollutes, especially a waste material that contaminates
air, soil, or water.
____ Harsh, or strict.
____ That can be readily vaporized.
II.-Put the words in the correct order.
1.-complex/ is/ photochemical/ reactions/ of/ Smog/ the result/ .
___________________________________________________________________
2.-come/ many/ Smog-forming/ sources/ pollutants/ from.
____________________________________________________________________
3.-Smog/ a city/ remain/ for/ may/ trapped/ over/ days.
_____________________________________________________________________
III.-Write five (5) tips to stop pollution. Use imperative sentences
Example: Do not throw garbage on the floor.
1.-___________________________________________________________________
2.-___________________________________________________________________
3.-___________________________________________________________________
4.-___________________________________________________________________
5.-___________________________________________________________________
c/r