1st way is chopping trees for wood. 2nd would be pollution by fossil fuel.
The ice caps are melting due to global warming which is being affected by the polluted air
A push factor is somthing that make imagrints move from their
countries and things that usally cause this are things
like......laws,or things that the imagrints dont like. a pull
factor is somthing that make imagrints want to move to a certain
place with what they think is better for them. for reasons
like......jobs,freedom,rights,money,and laws.
