The correct answer is U2
The Nobel Prize is one of the most prestigious awards in the world. Every year, people who have done research of great value for the good of the human being in various areas, such as Chemistry, Physics, Medicine, Literature, Economics and Peace, are chosen and awarded.
I think the answer is : Negative feedback loop
Example of a negative feedback is when your body temperature somehow increased because of the weather, your body will create sweat to lower your body temperature
hope this helps
More people were needed to plant and pick cotton so plantation owners used slaves to fill these positions.
Explanation:
The invention of the "cotton gin by Eli" Whitney resulted in tremendous production in America and other industrial estates. However, it was associated with another far-fetched issue along-side.
Before the invention of the cotton gin, there was general slack in demand of slaves. The coming of cotton gin meant the humongous need for raw cotton since the machine can process the raw cotton at a faster pace than any other machines available contemporarily.
This rapid need for raw cotton was substituted by employing slaves in the cotton field for their production and collection. This caused an increased need for slave once again.
