Answer:
Farmers were adding high nitrate levels from many large corn farms along the river. ... During the drought, the farmers used extra fertilizer. As rained, the ammonia and nitrate from the fertilizer were washed into the river.
The correct option which represents the point in Earth's revolution around the Sun when it is at aphelion is A. in early July.
Aphelion is a term which means 'farthest from the Sun,' which for Earth is around July 4th. Even though it seems weird, because you'd think it's cold when the Earth is so far away from the Sun, because the Earth's axis is tilted, everything is reversed - it is hot when it is farther from the Sun, and cold when it is closer to the Sun.
I wouldn't know how to solve this question since I don't have all the information given to solve this problem. But I'm going with a hypothesis, but if given more information I would be glad to help.
Answer:
Im literally taking a test that my teacher made and i have no idea what the answer is
Explanation:
If we are talking about one single carbon atom, then 4 hydrogen atoms can be bonded to a carbon atom, because there is 4 electrons in the valence shell, and a valence shell needs 8 electrons in total, which causes the carbon to have 4 open bonds. A hydrogen has only one electron in its valence shell of 2, and needs one more to complete it. So, each hydrogen connects to 1 of 4 bonds on the carbon to complete the valence electron.
Fun fact, CH4 is methane.
