Author Question: For most of human history, and in developing countries today, the major source of energy has been ... (Read 61 times)

formula1 · **on:** Jul 16, 2018

For most of human history, and in developing countries today, the major source of energy has been

A) natural gas.
B) oil.
C) wind.
D) muscle power.

Question 2

The concept of sustainability requires that

A) economic growth does not exceed the renewal of natural capital.
B) all sources of energy used in an economy must come from the sun.
C) global economic systems are based on the harvesting of natural products.
D) economies use equal portions of land, labor, and capital.