What are the challenges caused by a youthful population?​

Young people need to be educated - providing schools and teachers are expensive. Resources for lessons are difficult to access, and costly to buy. In the future, more children will reach child bearing age, putting more pressure on the health service.

the answer is option b.

explanation:

eutrophication happens when abundance supplements are available in oceanic biological systems, bringing about the expanded generation of vegetation and the resulting diminish in the oxygen levels of the water   eutrophication happens when there are abundance supplements in a waterway. this outcomes in plants having more sustenance and reproducing  more, here and there prompting more amphibian creature life also. eventually, this can decrease the oxygen level in the biological community.