Answer:
An observational study, not an experiment.
Explanation:
Researchers investigated reasons why different species of birds begin to sing at different times of the morning. They captured and examined birds of 57 species at different sites around England. They reported that there is a strong relationship between the diameter of a bird's eye and the time it starts singing in the morning: birds with larger eyes tend to start singing earlier.This is an example of An observational study, not an experiment.
The best description of the social classes in Saint Domingue was B-European settlers controlled wealth and politics.
<h3>What was Saint Domingue like?</h3>
- The French Europeans controlled the government of the island.
- The Mulattos were second class citizens but considered higher than the enslaved people.
The enslaved were more in number and when the Haitian Revolution broke out, it was due to their efforts and Mulatto leadership that it was successful.
In conclusion, option B is correct.
Find out more on the Haitian Revolution at brainly.com/question/26002867.
Answer:Your Answer Is A
Explanation:It would help calculate which program would show the highest overall benefits and lowest overall costs.
<span>Mediterranean economies were short of gold but could supply salt, taken by places like the African salt mine of Taghaza</span><span>, whereas West African countries like Wangara </span><span>had plenty of gold but needed salt.</span>
