The sun heats the earth ,which makes it possible for plants to grow .for plants to grow

问题描述:

The sun heats the earth ,which makes it possible for plants to grow .
for plants to grow

which makes it possible for plants to grow 整句话是定语从句,修饰前面的句子
定语从句中which做句中的主语 for plants to grow是 make it +形容词+补语 it是形式宾语,possible是补语,for the plants to grow是介词短语 或者看成真正的宾语 这种理解似乎恰当些

楼上的理解是错误的
for plants to grow就是make后面的it,it在这里是形式宾语,因此for plants to grow 是make的宾语
possible才是补语