In the diagram, OC 1 AD. If mZAOB = (3x) and mZBOC = (5x-6), then what is the value of x? What does x value

Its decreasing because of illnesses

Answer were lower;

D. a mountain abd are made by volcanos and tectonic plates

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.