DNA! the question is a typical descrption of it
I don't see any statements or a data table. Can you comment on this answer showing me those so I can help you answer? Thank you!!
Polar because it always is below 32 degrees and has no rainfall
You forgot to provide the statements
Some of the core reasons are:
1) Deforestation
2) Excessive use of fossil fuels
3) Unevenness of Garbage
4) Increasing Population
5) Expansion of Urban area
Hope this helps!