<span>A greenhouse gas is a gas that contributes to the greenhouse effect by absorbing infrared radiation. It is important because it keeps the Earth's surface heated and able to maintain life upon it.</span>
Small rocks have a bigger surface area than the big rocks, relatively speaking.
Imagine you have 40 boxes: if you arrange them together only some of them will be exposed to the outside area, and of those most only on one side.
In comparison, one lonely box would be exposed on 5 sides : every side expect on the floor.
Thee correct answer is - a deep ocean current.
The ocean's global conveyor belt is represented with the movement of the water in the deep ocean currents. These deep currents of cold water never stop, and they move constantly across the globe. They are getting their properties in close proximity to the poles, and move the cold and rich in nutrients water from the Arctic and Antarctic Circles towards the low latitudes. The conveyor belt is very important in the climate patters on the planet, but it is also crucial for the existence of the marine ecosystems.
Answer:
Anyway, the basic reason why the planets revolve around, or orbit, the Sun, is that the gravity of the Sun keeps them in their orbits. Just as the Moon orbits the Earth because of the pull of Earth's gravity, the Earth orbits the Sun because of the pull of the Sun's gravity.