Rachel carsons 1962 silent spring was ground breaking work regaurding what topic

Rachel carson's 1962 Silent Spring was ground breaking work in regards to the topic of pesticide.  

Explanation:

For years, city-dwellers with little contact with nature or farming communities were reassured that there was no need for worry about these chemicals. But Rachel Carson wrote a book about them in 1962 called "Silent Spring". It proved so controversial that many libraries refused to carry it and major publications would not review it. Nevertheless, enough copies sold so that is became one of the most influential environmental books ever written, selling out its first run of 50,000 copies in 3 months.