I decided to look up the National Geographic website to find my topic.  I chose the “Climate Control” subject.  It talks about the effect of elevation and climate on how plant life grows.  I am  going to talk about climate control for a mountain.  At the bottom elevation there are deciduous  trees like maple, oak, ash, etc.  As the elevation increases the plant life changes.  For every 300 feet of elevation the temperature is reduced by one degree. Since many plants cannot thrive in cold temperatures, they cease to grow at certain elevations.  If you look at my diagram, you will see how elevation changes affect the plant life.