Answer:
composed of ground substance and fibers
Explanation:
The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substance consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element.
90% of the energy is used up between levels, and the remaining 10% stays in the tissues to be passed on.
I believe the answer is C) Air Pollution