<span> In the last quarter of the 19th century, all four items were sources of energy. Kerosene was commonly used for lighting, electricity was beginning to replace gas lighting and steam was used to power boats, trains, and certain kinds of industrial machinery. Gasoline was the primary fuel of the automobile, or "horseless carriage," which appeared in the 1890's. Of these four, however, steam was introduce the earliest. The concept of the steam engine goes back to ancient times. However, the steam engine was really introduced as a common source of energy early in the 18th Century. So while kerosene, gasoline, and electricity as an energy source were all developments of the 19th century, Steam power is at least a century (and maybe more) older. </span>
B. Japan rapidly developed an industrial economy
European countries engaged in colonialism in the 1600s and 1700s for the main reason of expansion. This expansion resulted in <span>peacefully intermingling the cultures without </span><span>racism </span>and colonial massacres. The term colonialism refers to the developmental differential due to control of one people by an alien one, according to <span>Wolfgang Reinhard. Hope this answers your question. </span>
Answer: Agriculture in the Middle Ages in Western Europe became more focused on self-sufficiency. Barley and wheat were the most important crops in most European regions; oats and rye were also grown, along with a variety of vegetables and fruits. Oxen and horses were commonly used as draft animals.
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