Environmental issues

Complete the sentence with an appropriate word. There aren't any wild wolves in Britain anymore. They became ___ 250 years ago.

Complete the sentence with an appropriate word. When the polar ice caps ___ , the sea level rises.

Complete the sentence with an appropriate word. Carbon dioxide is a(n) ___ gas.

Complete the sentence with an appropriate word. When we burn ___ fuels, greenhouse gases such as carbon dioxide increase and surround the Earth.

Complete the sentence with an appropriate word. Changing weather ___ threaten a lot of animals with extinction.

Complete the sentence with an appropriate word. A lot of animals are losing their habitats and dying; the number of animals under ___ is increasing all the time.

Complete the sentence with an appropriate word. We should all try to reduce our carbon ___.

Complete the sentence with an appropriate word. Car ___ produce gases that surround the Earth.

Complete the sentence with an appropriate word. Global ___ is the increase of the average temperature on the Earth.

Complete the sentence with an appropriate word. Acid rain can even ___ the stone we use for buildings.