第139页 - 经纶学典学霸八年级英语上下册【江苏国标】

They can run up to70 kilometres an hour.

Because they travel a long way during migration.

She tracks all the different kinds of seabirds in the reserve.

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She learned about wildlife, forestry, biology, zoology, botany and ecology.

Yes. Because I think birds are important in the ecological environment so I want to protect them.(言之有理即可)