1. How many years have sharks existed?

2. Why are whale sharks called this way?

3. How long do the sharks live?

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1. Sharks have existed for millions years. (3 абзац, 1 предложение)

2. Whale sharks called this way because it is as big as whale. (3 абзац, 5 предложение)

3. Most sharks live for about 25 years, but some of them can live to be a 100 years. (5 абзац)

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