Which statement best explains the changes in borders shown between maps A and b

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.

Forms from the water cycle

The area of the indian subcontinent is 4.4 million km^2 whereas the usa is  9.8 million  km²