1. Immigration
2. Natural increase
It was the academic community who <span>mostly agreed and backed the book's scientific research and evidence. Also the public opinion backed Carson's text. On the other hand, t</span>here was strong backlash <span>from the chemical industry for book's message. </span>DuPont, Velsicol Chemical Company<span>, and the </span>American Cyanamid<span> biochemist </span>Robert White-Stevens<span> and former Cyanamid chemist </span>Thomas Jukes<span> were amongst the aggressive critics of the research especially that it was attacking the chemicals that they were producing.</span>
Answer
Most used Nonviolent resistance (NVR)
Explanation
The many advocacy groups of the 1960s led different types of protest, but most of these protests were nonviolent actions. This is a practice of attaining goals such as social change through symbolic protest, civil disobedience, economic/political noncooperation and other methods while maintaining a peaceful process. For example, Martin Luther King was a championed nonviolence leader who used a national holiday to stage peaceful protest for millions of black people against discrimination in the 1960s.
