If a person was climbing near the tops of the rocky mountains, what kind of vegetation would he or she find?

tall, sturdy pine trees
trees that lose their leaves in the fall
very few or no trees
a large variety of plants, trees, and shrubs

A person climbing the tops of the rocky mountains would find very few or no trees.

The person would find very few trees because of the weather conditions of the place. On certain levels of altitude, it is difficult to find trees. The reason is due to the fact that:

In some other mountainous areas, low levels of rainfall is also responsible for this.

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i think it was   tsar alexander ii