What process allows water to return to the earth’s surface?

Answermost of the time it would be ground into fine sediment,and sometimes they are carried away from the original location;

I’m confused ///: : : :

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.