The series explores strategies to sustainably feed more than 9 billion people by 2050. All pieces are based on research being conducted for the 2013-2014 World Resources Report. The world is projected to hold a whopping 9.6 billion people by 2050.
I think carbon and hydrogen.
I believe it is 5..hope I helped:)
Answer:
1 all of the above.
2 fire and land slide.
3 forest fire or all of the above.