How has the world’s population expanded so quickly over the past 200 years?

during the early 1900s the population has roughly 1.5 billion people but between the 1900s and 2000 it jumped all the way to 6 billion in 100 years.

the answer is option c.

explanation:

recycled water alludes to the water that being utilized again after it already  used for farming purposes.   this kind of water frequently contains pharmaceutical gathering due to the compound compost that is utilized for the plants is consumed into the water.

answer ( groundwater);