Answer: the access of light
Explanation: in the ocean floor, light can not be acessed as much because of how dark it is. In a tropical rainforest, light can be accessed easily through there because it is less dark than the ocean floor.
Both the Arctic (North Pole<span>) and the Antarctic (South </span>Pole<span>) are cold because they don't </span>get<span> any direct sunlight. The Sun is always low on the horizon, even in the middle of summer. In winter, the Sun is so far below the horizon that it doesn't come up at all for months at a time.</span>