Question

Asap!!!!!!!!!!!

Which two human activities are believed to be the greatest contributors to global warming?
nonnative species introduction and the burning of fossil fuels
deforestation and the burning of fossil fuels
deforestation and nonnative species introduction
non-sustainable harvesting and nonnative species introduction

Answer 1

It’s B

Step-by-step explanation:

I did the test

Answer 2

one of the correct answer is deforestation and burning of fossil fuels for sure and am not sure about the second one but I found this on the web and hope it helps