What effect does eutrophication have on aquatic ecosystems? a.)it prevents sunlight from reaching aquatic life below the water’s surface. b.)it negatively impacts aquatic vegetation but is beneficial for all aquatic animals. c.)it decreases carbon dioxide concentration, which is harmful for aquatic animals. d.)it lowers the concentrations of nitrogen and phosphorous available to marine animals.

Option A

Explanation: The eutrophication can be defined as the increased concentration of the minerals and nutrients in the water body.

The nutrients and minerals like nitrogen and phosphorous gets in through the agricultural run off, this leads to the growth of the algae in the water and this consumes the oxygen present in the water and makes it unavailable for the aquatic organism.

The sunlight does not reaches the aquatic life because the algal bloom covers the surface of water.

it should be briana that has it to me

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.