Acid rain. a) appeared in the 20 - th century; b) has always existed in nature; c) is the result of indudtrial development.

Global warming is called (to call) the greenhouse effect because the gases above the earth make the planet comparable to a greenhouse. 2) The term "acid rain" refers to what scientists call "acid deposition".

Change the Active voice into Passive in the following sentences: 1. Acid rain and acid snow poison rivers and lakes too. 2. Many countries produce acid rain. 3. People can clean the smoke from factories and power stations, but it is too expensive. 4.

Change the Active voice into Passive in the following sentences: 1) Acid rain and acid snow poison rivers and lakes 100 2) Many countries produce acid rain. 3) People can clean the smoke from factories and power stations, but it is to expensive.

Изменить активный голос в пассивный в следующих предложениях: 1. Acid rain and acid snow poison rivers and lakes too. 2. Many countries produse acid rain. 3. People can clean the smoke from factories and power stations, but it is too expensive.

The first English settlements appeared in ... a) North America in the 17th century b) South America in the 17th century c) Central America in the 16th century d) America in the 18th century