The answer is - Ocean.
All of the oceans in the world are connected, so they practically represent one huge body of water, which is by far the biggest in the planet, and is also a body of water that consist salt, thus it has salty water.
The oceans have sub-divisions, smaller than them, called seas. They range a lot in size, while some are huge, others are smaller than some big lakes. They represent a remote, peripheral part of the oceans, naturally surrounded by some geographical land forms, still they are part of the oceans.
Geographic/geography affect the civilization in many ways. And example is climate, the climate controls how your crops can grow.
Answer: it would be : C
Explanation
Be cause it is not a natural cause glaciers are water is and wind but not temperature
