Complete the sentences with a verb or a noun from the table above
1) there are a lot of factories that pollute the air with black smoke
2) water
can kill animals and people.
3) people
paper from wood. this leads to the
of forests.
4) we must try to find a
to ecological problems.
5) people
wildlife and that's why a lot of animals become
extinct.
6) the
of the new railroads can be dangerous for the
wild animals.​

bengamin1993    1   27.01.2020 06:24    43