<span>The question is asking us to judge whether the following sentence is correct: Smog may involve a variety of pollutants.This is a true statement: smog means a combination of "fog" and "smoke" and it's whatever pollutants were released into the athmosphere, typically by human activity. Some particles in smog are particularty dangerous to humans, so sometimes the air can be very unhealthy even if on that day it might not seem very grey </span>
Dying stars can explode.
A dying star can become a black hole.
A dying star can expand and get bigger right before they die.
Answer:
A. fertilizer runoff from farms, animal manure, and stormwater runoff.
Explanation:
Agriculture and Urbanization are the main factors responsible for the “dead zone” in the waters of the Chesapeake Bay.
In the eastern part of the Chesapeake Bay, you have agricultural activities such as the poultry farms which produce huge amounts of manure that are later washed through runoff into the bay. Also, nitrogen from the use of fertilizers in the farmlands are being washed along into the bay leading to increased level of nitrogen in the waters which reduces the availability of oxygen in the bay. The level of oxygen in the bay is reduced as the excess nutrients that are washed into the bay causes an overgrowth of algae, which later sinks and decompose in the water.
There are many factories located by the western part of the bay where there is also the concentration of urban centers. Much nitrogen is released into the air, which later ends up in the bay.
As a result of urbanization, large volume of water is created in the form of stormwater runoff, as rain falls on driveways, rooftops, roads and other pavement, making difficult for the water to be absorbed into the ground. This large volume of water moves quickly into the bay. Many pollutants such as nitrogen, bacteria, pesticides, trash etc, are washed along into the bay.
<span> It compacts the DNA allowing a large amount of DNA to fit into the cell. </span>
No, they are not, the nitrogen cycle only changes what nitrogen is in.