1. Explain how agricultural activities cause global warming. 2. What's the difference between greenhouse effect and enhanced greenhouse effect?​

The answer is false.if you have any questions ask

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.