Which of the following statements about the effects of agricultural techniques on the environment is true?
a.
fertilizer used for agriculture can enter bodies of water, causing eventual oxygen depletion.
b.
pesticides and herbicides are potentially harmful to bodies of water only before they degrade.
c.
agricultural practices have limited impact on the surrounding environment.
d.
tillage is an important agricultural practice that has no known environmental impact.

a

Explanation:

The correct answer is - a. fertilizer used in agriculture can enter bodies of water, causing eventual oxygen depletion.

The fertilizers that are used in agriculture as much as they are good for the plants themselves, they are very problematic when it comes to the bodies of water. Through the washing through the layers of soil partially the fertilizers reach the low underground bodies of water. This bodies of water more often than not are connected to the bodies of water on the surface. From the fertilizers they will get much bigger amount of nutrients that they naturally get and this will cause eutrophication. Once the waters are eutrophicated algae will start to multiply quickly and become the dominant life form. The algae are causing the oxygen levels to drop significantly, which as an end result makes the water drop on quality significantly and also cause dying out of the life in it.

answer; i do believe that the (14th)fourteenth amendment is the correct answer

the first historical instance of china engaging in internationalism was during the han dynasty.[1] at the start of the han dynasty, the huns in the north were attacking the frontiers of han and trying to obtain riches. emperor wu of han wanted to gain an alliance with a country called dayuezhi so the two countries could join together and fight against the huns.[2] to obtain this alliance, emperor wu sent zhang qian to the west to establish economic and cultural connections.[2] history records that during the han dynasty there were four primary avenues of contact between china and europe. they included the northern land route, the central land route, the southern sea route, and the far southern sea route.[1] the most famous of these routes is the central land route, or the classical silk road, comprising a network of roads stretching from northwest china to the ports of syria and the black sea, which passed through the oasis of the turkestans and northern persia.[1] the silk road was significant for chinese emperors because it provided dominance over central asia by developing resources and provided new markets for the export of china's most valuable resources.[1]