2007-10-11 11:12:11 · 3 answers · asked by derfla J 1 in Science & Mathematics ➔ Earth Sciences & Geology
Mountains form due to collisional forces between tectonic plates. The Appalachians were formed by Gondwanna crashing into Laurentia. The Himalayas are being formed by the Indian plate running into the Asian plate.
Mountains disappear because of erosional forces becoming greater than formation forces. Right now formation forces are greater than erosional ones in the Himalayas so that's why they are still growing.
2007-10-11 11:19:21 · answer #1 · answered by Lady Geologist 7 · 3⤊ 0⤋
the rocky mountains, are formed by major earthquakes long ago.
they dissapear by the elements,> water, wind, movement of the earth.
look on a map the rocky mountains desend all the way from alaska to arizona/colorado.
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2007-10-11 11:22:00 · answer #2 · answered by MistyCreek 5 · 0⤊ 1⤋
sand storms
disappear due to the wind blowing th top away
2007-10-11 11:16:35 · answer #3 · answered by dreamer 3 · 1⤊ 0⤋