D
I can collaborate and ywywui
The correct answer is D) Skilled workers leave impoverished states for the chance to work in wealthier areas.
The scenario that describes a mass migration caused by economic factors is "Skilled workers leave impoverished states for the chance to work in wealthier areas."
This statement is correct because the question is referring to "economic factors." This is when people live in a poor country and they want to find a job in other places to give their family better-living conditions. These people are skilled jobs that can offer their services in other countries. That was the case of many Europeans that emigrated to the United States in the 1800s. There are other factors.
<span>D) improved diet in the Americas and Europe
</span>
Answer:
cotton gin
Explanation:i think hope i helped
The answer is d. The population of light-colored moths decreased and the population of dark-colored moths increased.
<span>Peppered moth color variation is a good example of natural selection. During the Industrial revolution, due to pollution, trees become darker in the urban area. Light-colored moths were, thus, easy prey. The dark-colored moths were able to camouflage on dark trees and avoid predators. The phenomenon is known as industrial melanism. So, in polluted urban areas, the number of dark-colored peppered moths increased. In the clean environment, were much effective in hiding from predators and they outnumbered the dark-colored moths.</span>
