Which religious group makes up a majority of the population of pakistan?
a. hindus
b. muslims
c. buddhists
d. sikhs

B. Muslims
even the name of the country is "Islamic Republic of Pakistan"

Increased profits reduced health risks

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.