I am not sure what is the answer
C. They all contain a transparent part with at least one curved surface that refracts light.
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The answer is: They exists only in the Northern Hemisphere.
It is possible to find a glacier in other spots in the world.
Answer:
A watershed is a region obtaining both land and water. This is a shallow land region which accumulates water from drainage obtain from different sources like lake, river and pond. A watershed may also develop in a forest ecosystem. The clear cutting of forest will result expose more amount of soil nutrients for erosion by water as compared to natural forest. Therefore, nutrient loss will be higher in clear- cut watershed than natural forest watershed.