Which term best describes the first human communities in which people obtained food by hunting, fishing, and gathering berries?
A. Postindustrial
B. Hunter-gatherer
C. Agricultural
D. Domesticated

One of the methods used to reduce energy use is: a. energy efficiency c. energy conservation b. energy reservation d. energy holding select the best answer from the choices provided a b c d i know the answer is not option a

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.