The correct answer is option C) Steam Engine
Steam Engines were developed in the 1st Industrial Revolution in England. They led to the development of trains which provided fast travel throughout the country.
Steam Engines require the burning of coal to make steam and push machinery. This meant that the Steam Engine and Coal were perfect complimentary products and the increase in demand for one, would automatically increase the demand for the other.
Railway lines completely transformed countries as more and more goods and people could be transported cheaply and quickly.
From England, steam engines and trains spread to Europe, the US and other parts of the world and for the next 150 years, trains became the preferred mode of transport.
Hello. You did not enter the answer options, which makes it impossible for your question to be answered. However, I will try to help you in the best possible way.
Paper was a very important element in ancient China, since it was used in very different ways and in practically all parts of society. The most common use of paper was as documents and form of communication. The paper was also used as packaging, currency, payment, books, maps, umbrella, hat and there are records that affirm that the paper was even used as doors and walls inside the houses.
Answer:
Roughly 40 percent of Americans lived in cities, and the number was climbing. These large city populations caused crime rates to rise, and disease to spread rapidly. As a result of unsanitary living conditions, diseases such as cholera, dysentery, and typhoid fever struck urban areas with increasing frequency.
