Which sentence best explains how steam power changed agriculture in england between 1810 and 1850? farmers started using steam-powered machines to spray chemical fertilizers and pesticides. livestock farmers began using steam-powered machines to milk cattle and shear sheep. steam-powered railways transport and sell agricultural produce far from where it was grown. steamships to transport large numbers of people from the united states to english farms.

Steam power changed agriculture in England between 1810-1850 because steam-powered railways helped transport and sell agricultural products far from where it was grown.  

At the beginning of the 19th century the British invented steam locomotives, which allowed the transportation of large quantity of goods and raw material to be delivered from the farms to the cities. Now fresh goods could be transported to far places. Besides, the costs for the transportation of  these goods became much cheaper since a large amount could be carried out in many wagons.

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.

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