Объяснение:

why am I involved in this process?

Yesterday, my teacher told us about the pollution on the street, and he asked us to help clean up the trash.

This morning, my classmates and I are cleaned up the trash on the street. My classmate Pete helped me, we took bags of garbage and put it to the trash. My friend Sally was sweeping up a pile of fallen leaves. And our teacher also helped us. I am very happy and tired