Answer:
The combined length of the Missouri-Mississippi river system, from headwaters [of the Missouri river] in southern Montana, to the mouth of the Mississippi near New Orleans [Louisiana], is aproximately 6,267 km (3,895 mi), making it the world's fourth longest river system, after the Nile, the Amazon, and the Yangtze.
Explanation:
When a small percentage of a country does agriculture, then it indicates that the country relies heavily on food imports from other countries. If they do not grow their own, let's say, vegetables or fruits, then they have to get the necessary staple foods from imports. It will most likely also indicate that the country is trying to be more industrialized focusing more on other industries as compared to concentrating on growing food, plants, and crops. It may also indicate that the country's land is not very conducive for growing a lot of kinds of crops.
During the industrial revolution, european countries had the ability to control sea routes. in the 19th century, energized by the industrial revolution and under pressure from a RAPIDLY GROWING POPULATION, europe decided to colonize africa and india .
