... combine both theories to explain the origin of water on our planet. However, there are conditions to have and keep this water. The water produced must have been of large quantities, mostly of liquid form and migrated to the surface. Also, it must not have been lost in space. The Earth’s gravity was able to ensure that our atmosphere would hold back the water vapor so that it does not escape us. Earth’s climate Other planets had water, but only the Earth was able to maintain it. The climate plays a major role in keeping this resource. The temperature on Earth allows us to keep the water from evaporating or freezing. On Venus, the heat evaporated the water that once existed on its surface. On Mars, the opposite happened where the water simply froze. I always thought that it was basically the Sun that allowed us to keep our water. I ...

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