It is choice b, because it didn’t drop economy nor population
Many manufacturing units were relocated to the urban areas due to the introduction and usage if steam power.
Explanation:
Second half of the nineteenth century is known for the factories that used steam power in the urban areas. Separate buildings housed the steam engine, and it inspired the development of factory model. Advance in iron and steel industry and rail road construction companies urged the factorial set up in cities rather than the towns.
In the countryside, many factories were set up near the rivers so that the finished products were easily transported to different places. Due to the invention of the steam engines, the transportation of finished goods was easy and feasible.
Answer:
Foreign invaders brought them there as captives.
Explanation:
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Answer:
Many people do not realize that helium is a non-renewable resource. It is made on earth via nuclear decay of uranium, and it is recovered from mines. Once it is released into the atmosphere it becomes uneconomical to recapture it, and eventually atmospheric helium will escape earth altogether because it is so light.
Explanation:
