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In high altitudes, people have less oxygen to breath in, making strenuous activities much harder.
Vice versa in low altitudes.
<span>The Andes in western South America are an example of a landform that arises from the tectonic plates that have moved through time due to volcanic activities. The effect of such movement resulted to the subduction of oceanic crusts beneath the South American plate.The Andes is the tallest mountain range outside of Asia. </span>
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur. I hope this helped!
