The start of the great depression can be traced to which of these factors? a. many world war l veterans faced unemployment after finding their factory jobs had been filled by women

b. overprinting of currency in England and France led to hyperinflation and economic collapse

c. countries around the world eliminated tariffs to increase domestic businesses

d. American stockholders took on increasing debt to buy shares of stock that eventually lost its value.

d

Explanation:

The correct answer is "restrict the use of DDT."

In her book Silent Spring, Rachel Carson discusses how pesticides like DDT are dangerous to the environment. Carson's book focuses around important environmental issues of the 50's and 60's and uses statistics from research to support her claims. This eye opening book grabs national attention and results in Congress developing laws to protect the environment.