Which of the following climate zones would be the most hospitable to humans? a. steppe b. marine west coast c. desert d. subarctic

B. A marine west coast climate is hospitable to human habitation. Marine west coast climates feature cool summers; cool but not cold winters; few extremes in temperature; and an even distribution of precipitation throughout the year. In the U.S., the Pacific Northwest is a good example of a marine west coast climate. A steppe climate is dry, and plant life is typically small. Deserts are too dry to be ideal for human habitation. Subarctic climates are less hospitable due to the cold.

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.