A watershed is land that contributes water<span> to a stream, river, lake, pond, wetland or other </span>body of water<span>. The boundary that separates one watershed from another, causing falling rain or melting snow or spring </span>water<span> to flow downhill in one direction or the other, is known as a “watershed divide”.
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Cattle ranch with pasture
The measure of how much water can be stored in geological materials is referred to as porosity. The correct option is C.
<h3>What are geological materials?</h3>
A geological material is a natural material extracted from the Earth in the form of rock or sediment, such as rocks, clays, sands, limestone, and other industrial minerals.
The percentage of void space in a rock is defined as porosity. It is defined as the ratio of the void or pore space volume to the total volume.
Thus, the correct option is C.
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Think of it this way. Osmosis occurs when water flows to a different side given its a membrane or not. This is because it flows to a less dense area to reach equilibrium between the two sides. Heat is very similar. It will try to spread to places where there is not as much heat. Keeping the laws of heat travels up, the heat from the coils will reach the ends. We call this "Thermal Equilibrium"
