¿Que consecuencias y contradicciones existen en las grandes ciudades?

モーションモーション モーション is that correct

Nation of conflicting ethnic groups

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.