D)
scientific theory is something that has been proven over many tests
Hope that helps
I'm not sure but I know that the liver produces bile. The liver stores sugars but removes others and secretes the bile into the small intestine.
I would say dust storm, From us moving earth.
The cell cycle is a series of stages of a cell growing and dividing. If the cells did not go through the process the result would be no reproduction. The cells will be shortly lived and die.
The answer should be 2 because planting trees gives out oxygen and we need oxygen to live
