Vocabulary vq 8b Complete the sentences with one word.The first letter for each word is given. 1 A lot of the world’s g___ are melting. 2 There are thousands of trees in a f____ . 3 The Grand Canyon is a huge river v____ in the USA. 4 Many people think there should be a lot more nature r____ where animals are safe and protected. 5 Most scientists agree that c____ change is going to cause big problems on Earth. 6 Many animals are killed by i____ hunting and fishing. 7 Oil and other chemicals from factories cause a lot of water and air p____ .