Best answer: B. Trade networks develop to exchange resources.
When one nation or region has resources that others do not, it can use those resources as a trade commodity to exchange with other nations. For instance, areas that have rich oil resources will export oil to countries that don't have oil reserves as a natural resource. In turn, those countries may have other commodities that they can exchange -- agricultural resources from countries with fertile agricultural land, for instance.
Answer: The answer is Oxygen.
Explanation: The reason the answer is oxygen is because it is the element that we mostly need in our bodies to stay alive. Oxygen is 65%.
I hope this answer helps! :3
Answer:
Increasing factory businesses created many more job opportunities in cities.
Explanation:
The increasing availability of job opportunities attracted people from the country to the cities, where industrialization was rapidly developing and growing.
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Answer:
for the first one, it is the last answer and for the second one it is the 3rd one i believe
Explanation: