Which of the following was NOT an effect of the second agricultural revolution? A) improved life expectancy
B) improved diets
C) more people available for factory work
D) improved medicine
E) an increase in the output of farms

Terrence would like to reward himself after each goal he sets, but he's not sure what type of reward to choose. he's easily distracted and finds it hard to concentrate at times. which would be the best type of reward for terrence? a. a brief social network break b. a long nap c. a snack while he keeps studying d. watching a couple of tv shows