Carbon
Carbon is a part of rocks and fossil fuels like oil, coal, and natural gas etc...
<span>The eskimo system is the kinship that is most commonly used in the United States. It is associated with a bilateral descent which usually includes a father, a mother and their children living together. It is most common because it is easiest to show and explain.</span>
Answer:
The retina is the back part of the eye that contains the cells that respond to light. These specialized cells are called photoreceptors. There are 2 types of photoreceptors in the retina: rods and cones.
Explanation: