Two ways that people affect in ecosystem

Two ways that people affect an ecosystem are littering which is bad and conservation which is good.

As we build, we destroy ecosystems to make room for ourselves. As well as this, once we live there, we can destroy ecosystems because of our trash piling up and contaminating the land.

Answer erosion,oil spills,pollution,tourism,urban development;

Maybe on the physical part? i dunno i just guessed plus i really need the points