What is one reason the world is becoming increasingly urban as people move to large cities?
A. Farmland is becoming scarce and expensive.
B. Natural disasters force people to leave rural areas.
C. Governments provide free housing in cities.
D.
There are more jobs in large cities.
What’s the answer?

D. Many jobs in large cities

Explanation:

Large cities results most times from industrialization; that is more industries are set up. This usually is a result of technology advancements. As we discover more ways of doing things, we set up companies to carry out this new means or method of implementation. Consequently we need people and likewise, this people need housing; so is the case of migration of people from rural areas to larger or more exposed areas for need of work for a better economic life.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

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explanation: