What are five ways humans alter the world's environment?

1.by cutting down trees

2.natural activities affect the earth through the poisonous gases emitted during volcanic eruptions which kill about hundreds or thousands of forest inhabitants like the animals for example. also, it destroys farmlands

3.Removing natural resources ie Coal, Oil, Gold, etc 

4.building things on/in it. IE homes/buildings/streets 

5.using and or contaminating the water supply

We produce tons of pollution (Water & Air)

We have overpopulated (more people - more food needed)

We have been deforesting forest and destroying habits for the animals and plants to live and causing extinction and loss of habit zones for animals

We have caused Acid Rain which is Sulfur dioxide and nitrogen oxides

We have made Global warming with industrial items and structures (Oil Rigs, Factories, Gas Powered Vehicles, Coal) causes Ozone depletion.

Here is a picture  of the net. its 4 squares in a row diagonal and on the third draw one square aove and under