it caused和it is caused有什么区别

区别就是it caused为主动语态而it is caused为被动语态，具体的不同如下

it caused中文意思是它导致

It had minimal effect on biopersity, and any pollution it caused was typically localized.

it is caused中文意思是它是由

It is caused by damage to the blood vessels in the eyes, and results in gradual vision loss and blindness.