Question

How have the sources of energy for light and movement in cities changed over the last 120 years?

Answer 1

Answer:

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Explanation:

There are three main types of fossil fuels namely coal, petroleum, and natural gas. Industrial Revolution was set with the use of fossil fuels in the 18th and 19th Century. Fossil fuels make up the bulk of the world's current primary energy sources.

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Answer 2

In the olden day 120 year ago the insides of buildings were lit by candles, oil lamps and gas lights. fires is used to keep the buildings warm in winters.

But Today, the buildings are lit by electricity. Some buildings have air conditioner They also have heaters powered by electricity to keep them warm in winter and cool in summer