Question

36. Environmental protection is an … problem.
a) easy b) important c) pleasant
37. Many scientists try … ecology problems.
a) to solve b) to know c) to protect
38. People must … aluminium cans, newspapers.
a) solve b) recycle c) save
39. Ecology is a science which studies .. .
a) environment b) the relationship between people c) recycling
40. He wants to become an ecologist himself to research and protect the ...
a) environment b) pollution c) packaging

Answer 1

Ответ:

b) important

a) to solve

b) recycle

a) environment

a) environment