тест. найдите правильный ответ
1. There is ___ acid in ordinary rain.
a) always
b) no
c) strong
2. Acid rain ____
a) appeared in the 20th century
b) has always existed in nature
c) is the result of industrial development
3. ____ is the cause of acid rain.
a) burning coal and oil
b) the wind
c) water in the air
4.A lot of trees have died in Canada because____
a) ecological laws of the country
b) of the power stations and factories
c) animals cannot live in polluted environment
5.Acid rain badly influences_____
a) only our fauna
b) only our flora
c) our habitats
6.People_____clean the smoke from factories and power stations.
a) are able to
b) do not know how to
c) should invent methods to.

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1. There is ___ acid in ordinary rain.a) alwaysb) no ««c) strong2. Acid rain ____a) appeared in the 20th centuryb) has always existed in naturec) is the result of industrial development ««3. ____ is the cause of acid rain.a) burning coal and oil ««b) the windc) water in the air4.A lot of trees have died in Canada because____a) ecological laws of the countryb) of the power stations and factories ««c) animals cannot live in polluted environment5.Acid rain badly influences_____a) only our faunab) only our florac) our habitats ««6.People_____clean the smoke from factories and power stations.a) are able tob) do not know how toc) should invent methods to. ««