The Rocky Mountains are described as younger because the Rocky's are really two mountain chains. The older mountain chain started billions of years ago, and the younger mountain chain pushed the older mountain chain up more, only 60 millions years ago.
The second largest continent is Africa , the worlds largest desert is Sahara desert and the worlds longest river is amazon
The international conference on population and development was held in Cairo, Egypt in 1994.
OKAY SO, do you have any more info?
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by its crystal like appearence thus mostly forms near rocky areas
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