Answer:
What exactly is your question?
The rio grande river starts in the san juan mountains in colorado and continues 1,901 miles to the gulf of mexico.
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Your question: What physical feature marks the eastern boundary of the cultural subregion known as European Russia..?
Your answer: The Ural Mountains physical feature marks the Eastern boundary o f the cultural subregion known as European Russia.
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The word minerals mean A formal definition of a mineral, as used by geologists would be: A naturally occurring inorganic solid that has a definite chemical composition, and an ordered internal structure. Geologists are able to identify minerals because they have characteristic physical properties.
The end of the book is the best