Answer:
One of the primary reasons for the reinvigoration of slavery was the invention and rapid widespread adoption of the cotton gin. This machine allowed Southern planters to grow a variety of cotton - short staple cotton - that was especially well suited to the climate of the Deep South.
Explanation:
Answer:
European explorers unwittingly brought with them chickenpox, measles, mumps, and smallpox, decimating some populations and wholly destroying others.
Explanation:
Answer:
King Prithvi Narayan Shah said "nepal is the common home of 4 castes and 36 subcastes". People in Nepal are friendly towards each other. They don't have the feeling of enmity towards any other. They celebrate each other religions festivals feeling it of their own. They don't have complain that their nation is a secular state and they have accepted the diversity near them.
Answer:
The options are
a.
The group that drinks water
b.
The performance on the exam
c.
The group that has coffee
d.
There is no experimental group as this is a case study
The answer is c.The group that has coffee
Explanation:
Dr. Turner is said to form the hypothesis that ingesting caffeine prior to an exam will improve exam performance. In a study, she gives half of the participants coffee and the other half water. It is known that tea contains caffeine. The investigation and experiment is centered around Caffeine which makes the group that has coffee the experimental group while the people who took water will be the control group which will be used in comparisons with the results gotten from the experimental group.