Using complete sentences, identify two ways humans in South and Southeast Asia have modified their water supply. What are the positive and negative effects of these modifications?

I’m sorry i don’t know the answer

The beach , myrtle beach sc

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.