<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>
Answer:
Two options are correct here:
- They were fleeing from religious persecution.
- They wanted more economic opportunity.
Explanation:
Since the foundation of the first English colony in the New World, people who decide to emigrate to the Unites States have been often leaving religious persecution at home, or they left because they wanted to live their lives according to religious rules not accepted by mainstream practices of their time. The other powerful motive for emigration to the USA is search for economic opportunities not available in the home country, or some material motives such as escaping poverty, famine or lack of farming lands.
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B. Unequal treatment of women
Answer:
a. Seafloor spreading
Explanation:
As the plates move away from each other, new crust is formed at the bottom of the ocean, thus giving us seafloor spreading
