The three questions of economics best making decisions about ? a) production b) consumption c) usage or d) expenditures

I believe the answer would be C i'm not for-sure tho...

A) production

Explanation:

As an economist has to look for the economic production, consumer consumption patterns and thus the usage of the items is depends on his decision making. Question-related to whether the demand meets the supply need of the population and the prosperity of the nation on the basis of input and outputs given by society. Thus related to how to produce for whom to produce and how much to produce.

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.