Circle the correct preposition. 1 the ozone layer filters in/out harmful rays of the sun. 2 many species are in/at danger of disappearing. 3 chemicals are harmful for/to most animals. 4 the wwf is famous for/to protecting wildlife. 5 the hole in the ozone layer continues for/to grow.

Circle the correct preposition.
1 The ozone layer filters out harmful rays of the sun.
2 Many species are in danger of disappearing.
3 Chemicals are harmful to most animals.
4 The WWF is famous for protecting wildlife.
5 The hole in the ozone layer continues to grow.