Although thunder and lightening are produced at the same time, light waves travel faster _____, so we see the lightening before we hear thunder.

Câu hỏi :

Although thunder and lightening are produced at the same time, light waves travel faster _____, so we see the lightening before we hear thunder.

A the same as sound waves

B than sound waves are

C than sound waves seem

D than do sound waves

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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