What was an effect of the green revolution
a. increase of chemical pesticides and fertilizer
b. decrease in agricultural production
c. reduction in the use of farm technology
d. increase of food shortage

The correct answer is A because the principal effect of the Green Revolution was an increase of chemical pesticides and fertilizers. They were extremely important to agriculture, and Thanks to the use of these new substances like fertilizers, synthetic herbicides and pesticides, farmers were now able to have better control over the plagues that normally minimized the production of crops.

At the same time, the implementation of multiple cropping techniques in conjunction with the use of chemical pesticides and fertilizer, allow the agricultural industry to have high-yields crops, and significantly increment the production of food in the country.  

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

answer; i believe the best and correct answer is stronger bonds between the nations of africa;