Spanish colonies needed many workers because they needed to grow their crops, mine gold and silver, and work in their new cities. Spain wasn't able to have enough Spanish workers so they ended up taking Indians as their slaves, giving them very little food and water forcing thousands to die of starvation and overwork.
Human paleontology dispute department
Individuals motivated primarily by emotions are often passionate and adventuresome.
Answer:
Writing was Rachel Carson's greatest skill and Silent Spring was her most important contribution to the world since it launched the global environmental movement today. Carson worked to purge the United States of deadly pesticides like DDT that were used everywhere across the U.S. in agriculture and elsewhere.
Explanation: