Author Question: Alkaloids, such as caffeine and cocaine, are basic compounds. Indicate whether the statement is ... (Read 68 times)

jman1234 · **on:** Aug 27, 2018

Alkaloids, such as caffeine and cocaine, are basic compounds.

Indicate whether the statement is true or false

Question 2

Which of the following statements about early societies is NOT true?

A) One unit of human energy could produce up to ten units of food energy.
B) Most of the energy came from renewable resources.
C) Early agricultural practices rapidly depleted nutrients in the soil.
D) A portion of the energy from food was invested in shelter and clothing.