How are humans most affected by the altitude changes in the Andean countries? People at higher elevations live in colder temperatures

People at the lowest elevations feel the effects of thinning air

O People cannot grow crops in the highest elevations

People experience adequate rainfall throughout each elevation range

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to stay where they were until m sent for

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations. click to let others know, how is it

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answereruption of molten material; magnetic stripes in the rock of the ocean floor; the age of the rocks themselves;