Cells are surrounded by #2 , Cell membrane and Cell wall thats what protects the cell
The best answer is C! Hope I helped :D
There are two things that could be done. The first is to increase the mass of the objects. The second is to decrease the distance between the center of masses of the objects.
Only when it is found in the atmosphere, because it will create a hole, letting strong UV rays shine down on earth, heating it up, and causing skin cancer in humans and other animals.
