Hey Mr. Wood it's Frankie from per. 3. I am going to tell you the 3 answers on the three questions. 1. the factors that cause this area to be a tundra are that the sun hits this area at a less direct angle. 2. With a warmer climate in this area more plants will grow and as these plants grow thay will cause photosynthesis releasing carbon into the air and this will lead to more plants. 2. Ther are no large trees in this area because plants can't really make photosynthesis in this area and so there isn't that much soil to grow the larger trees. Thanks Mr. Wood bi.