The reason that rock lessons begin with igneous rocks is because igneous rocks were the first to form directly from the earth's magma

Answer (true);

None of them. they are likely to occur on any plate boundary

Its led to migrationits led to death 

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.