Crossing over occur during prophase of mitosis
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
A contour interval is the lines on a topographic map that state the height (from sea level) of the hill, valley, mountain or the ground level.
I'm pretty sure it's <span>coal, nuclear, & oil, because they are man-made, and they're only good for a one-time use only.</span>
