Hi!
Your answer is humility.
Hope I helped, and good luck!
Answer:
Biomagnification of DDT leads to an increase in its concentration at the higher trophic level and its higher concentration in birds leads to the disturbance in their calcium metabolism. ... In this way, the biomagnification of DDT leads to a decrease in the bird population.
Explanation:
He was the president twice so thats a government relationship and he helped Americans regain faith in themselves and get the country out of the great depression
