The cotton gin was an important invention because b) it inadvertently led to the spread of slavery. This was because the demand for cotton grew even more, due to the cotton gin being produced in masses. The cotton gin is "a machine that quickly and easily separates cotton fibers from their seeds, allowing for much greater productivity than manual cotton separation."
What mural? Take a picture of it and include it in another question and I'll see if I can help u?
A negligible difference. Wind speed of 40 mph generally does not change the temperature of the air that much.
However, I believe you are meaning to ask what the difference feels like if you were subject to these conditions, this is a more complex answer. (Assuming that your skin temperature is greater than 35 degrees) You first need to understand that a change in wind speed would only decrease the time taken for your skin to equalise it's temperature to the surrounding air and thus feel 'colder', this is because more air is flowing over your skin per unit of time.
There are multiple other factors in determining what the 'feels like' temperature would be, such as taking into account the humidity and density of the air combined with our understanding of how heat is lost from the human body.
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Answer:
King Leopard II of Belgium, controlled central Africa by establishing colonies. He actions in central Africa is known as cruel and heartless. King leopard II established his empire in Congo (in Central Africa) as a Free State to extract the natural resources and rich minerals. He enslaved people of Congo for the rubber trade and led a genocide killing about 8-12 million people.