A any type of burning increases carbon dioxide
Answer:
coral reefs in the ocean breaking down being deposited ashore
Explanation:
a p e x
I would say that probably classifying natural disasters and their impact on man would most likely be considered by William Hughes as true geography as rather than just describing earth's features it would show the impact of earth's processes on man.
I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.