Water flowing over a cliff is known as a waterfall, or a cataract.
Niagara Falls --- IS --- a cliff.... that's what makes a waterfall. A waterfall is a place where water flows over the edge of a cliff.
The pronoun that takes the place of the singular noun 'cliff' is it.Example: Stand back from the cliff, it is very unstable.
beautiful valleys and it means foot of the mountain rolling hills awsome.
Valley Glacier
If you are using Black Hills as the name of a place, then yes, it should be capitalized because it would be a proper noun. i.e. Black Hills of South Dakota. If it isn't being used as a particular place, i.e. Look on top of those black hills which are next to that white mountain, then it would not be capitalized.
I told you that I really don't know, stupid. Name- Kasturi Neog, Place- Your Head.
the low area between hills or mountain is called...VALLEY
Place
You mean Mt. Rushmore, in South Dakota's black hills. There's actually four of them, but here's three- Washington, Lincoln and Teddy Roosevelt.
A place.
A cliff can change over time by the process of erosion. This process erodes parts of the cliff away slowly and then, when erosion stops taking place to the cliff, the cliff stops changing.
meep