填空题

How long did it take the redwood seeds to complete their long journey It took the redwood seeds ______ to complete their long journey.

答案： 75，000，000 years

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What is the redwood described as Redwood is called ______.

答案： the tree with the moving foot

Where did these trees grow a long time ago These trees grew a long time ago in ______.

答案： the Arctic

How long did it take the redwood seeds to complete their long journey It took the redwood seeds ______ to complete their long journey.

答案： 75，000，000 years

Whom were the seeds of the redwood carried by and traveled thousands of miles The seeds of the redwood were carded by ______.

答案： birds，winds，and some strong-teethed animals

Why did the redwood trees begin to move southward It was due to ______.

答案： the warmer climate