Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false

True yep it’s true my dude

The answer is d) rift

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.