Which sentence best describes the shape of earth?
a. earth is a perfect sphere. b. earth is nearly spherical, but it bulges slightly at the poles. c. earth is nearly spherical, but it bulges slightly at the equator. d. earth is nearly spherical, but it bulges slightly at the northern mid-latitudes.

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Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city. 

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.

Which figures are you talking about?