Coastal areas tend to have a variation between seasons?

High or low

Did you know it's illegal to own only one guinea pig in switzerland?   : )

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.

Ibelieve it was because of the gas act in order to preserve fuel