Compare and contrast seismic refraction and seismic reflection survey methods. outline applications for each and their advantages and disadvantages

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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.

The answer is a. it makes more sense then the other answers listed there.

So were saposed to pick 1 of these