Variant 1 1 Complete the sentences with the words from the box. whale turtles squid mammals tusks 1) A young is called a calf. 2) The first small million years ago. evolved from reptiles about 200 is a sea mollusc with ten arms that is typically 3) A able to change colours. 4) Elephants are killed for their ivory 5) Sea are hunted for their shells and meat. 2 Arrange the letters in the words in the correct order. Use these words to complete the sentences. A abíatht - B ectxtin - C ogcoley - D yclerecd E puteolld - F xygeon - is the study of the interaction of people 1) with their environment. 2) Office paper, tyres and telephone books can be 3) The natural activity. is often destroyed by human. 4) Trilobites and dinosaurs are already 5) Forests produce 6) Today coastal waters have become very and whales and dolphins are killed in great numbers. Da

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