The sky is pale blue in higher altitudes while it is deeper blue in lower altitudes. This is because there is more air molecule closer to earth surface (as a result of higher air pressure) than higher altitudes. The air molecules are responsible for scattering of sunlight hence giving the sky its blue hue. The more the air molecules the more the scattering.
To survive, otters need clean water in a relatively special, undisturbed environment.
That, and their small numbers over a large area, made them very vulnerable to pollution, habitat destruction and historic unregulated fishing. Unlike most people, sea otters like to cool their feet. In fact, their ice consumption is so high that Den Blå Planet has decorated the otter's enclosure with its own ice machine, so they always have a cold treat close at hand.
From the Vancouver Aquarium: Sea otters usually catch hard-shelled food - clams, abalone, clams, crabs... If they are too hard to break with their teeth, they crush them with a rock or against a rock. This is what this sea otter (Elfin) does when it hits the ice on a rock.
Learn about otters:
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Answer:
the position when the river loses energy it may drop some of its load this is called the position factor affecting river processes erosion rate this is Greater where the discharge is higher energy is higher the weather the weather the more erosion takes place
