What line is 23 1/2 s
a. tropic of capricorn
b. equator
c. tropic of cancer
d. arctic circle

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.

Answer (b) they're often rural migrants with no title to housing or rights to established businesses

Monsoon or

Earth is passing saturn in its orbit, with both planets on the same side of the sun