Which statement best describes one positive and one negative way that society was impacted by the use of ddt? a)society was positively impacted by increased insect control in crops, but it was negatively impacted by harmful chemicals. b)society was positively impacted by insect resistance, but it was negatively impacted by harmful chemicals. c)society was positively impacted by increased insect control in crops, but it was negatively impacted by malaria and typhus. d)society was positively impacted by insect resistance, but it was negatively impacted by malaria and typhus.

a)society was positively impacted by increased insect control in crops, but it was negatively impacted by harmful chemicals.

Explanation:

DDT is an insecticide that was largely used in the '80s to control the vector of malaria and typhus. It acts in the neurological system, killing the insects.

It was banned in several countries because it is difficult to degrade in nature, and is toxic to humans. So, society was positively impacted by increased insect control in crops, but it was negatively impacted by harmful chemicals.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.