winter differs from the other seasons in that it is not as warm as spring.1\这是个什么从句?2\in that 在从句里作什么成份?3\in that 可以用别的词代替么?

winter differs from the other seasons in that it is not as warm as spring.
1\这是个什么从句?
2\in that 在从句里作什么成份?
3\in that 可以用别的词代替么?

原因状语从句
连词
for,as,since,becauce,as a result of

winter differs from the other seasons in that it is not as warm as spring

In that 可以用FOR 代替吧 ，意思包含因为，由于