Q: Answer the following question given this paragraph: Climate change in Earth history was due to natural processes. Recent global warming is due mainly to human actions. The burning of fossil fuels releases greenhouse gases into the air. This creates greater greenhouse effect and global warming. Q: While climate change in earth history was due to natural processes, what is primarily to blame for recent global warming? A:

Pick your answer from:
[i] wars
[ii] volcanos
[iii] factories
[iv] human actions
A:
[iv]