e)
4) Guess the missing word.
oo . . . is something in or on which people or goods can be carried from one place to another. (a vehicle)
oo . . . is a natural or chemical substance that is put into the soil to make crops grow better. (a fertilizer)
oo . . . is a chemical substance used to kill small animals or insects that harm the crops. (a pesticide)
oo . . . is an illness which may cause death. (a cancer)
oo . . . means to spread widely in all directions by throwing. (to scatter)
5) Match each word with its correct definition:
Waste, noise, illness, smoke.
a) Used, damaged, or unwanted substance;
b) Unhealthy state of the body or mind;
c) Sound, especially unwanted or meaningless unmusical sound;
d) Usually white, grey, or black gas produced by things burning;
Key:
Waste -a), noise - c), illness - b), smoke - d).
6) Put the words in the sentences in order, the first word is in italics.
1) Can, highly, be, Radiation, dangerous.
2) Should, Governments, laws, enforce.
3) Should, Enterprises, activities, polluting, certain, reduce.
Key:
1) Radiation can be highly dangerous.
2) Governments should enforce laws.
3) Enterprises should reduce certain polluting activities.
7) Make a sentence out of the two parts:
1) At present one of the most important problems for mankind . . .
2) The rivers, seas and oceans . . .
3) That purifying air, water and soil is changing from a national to a global problem . . .
4) Therefore, it is necessary . . .
5) Scientists expect that . . .
a) Are becoming seriously polluted by industry.
b) It is possible to eliminate air and water pollution by planned actions of human soci
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