A. The deaths of all plants and marine life in the area.
It's because of the lack of oxygen since eutrophication often leads to algal bloom which in turn blocks the radiation and doesn't let oxygen to pass through it
Because there have been many invasions the correct answer would be C. The invasions would have brought many different ethnic groups into the area.
Hi
The answer is : Mexicans Cession
D. Density
The bulk density of a planet will reflect the relative amounts of the materials the world is made of, regardless of what materials occur at the surface.
The first one is 4 in 52, the second is 3 in 51.
<span>4/52 x 3/51= .0045249 </span>