Technology can have good and bad effects. what is a bad effect of spraying pesticides on crops with the use of airplanes?
a. it is sometimes sprayed too far from the crops.
b. it increases food production.
c. it lowers the cost of food.
d. it decreases the cost of spraying pesticides.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.