Помогите сделать пожалуйста номер 4

When litter is left in the forestlt; the animals are hurt.

When  factories and cars pollute the air, the climate is changed.

When people throw away plastic bottles, the environment is damaged

When  a  lot of people dont recycle paper, more  trees are cut down.

When  some children break trees, the birds are disturbed.

When  people throw litter into the river, the water is polluted.

When people leave glass bottles in the forest, the animals are hurt.