To upgrade from Windows 10 Home if you have a Windows 10 product key: 1  Select the Start button, then select Settings > Update & security > Activation. 2  Select Change product key, and then enter the 25-character Windows 10 Pro product key. 3  Select Next to start the upgrade to Windows 10 Pro.
The leaves are segmented, so excess water can drain away. Rainforests have a shallow layer of fertile soil, so trees only need shallow roots to reach the nutrients. However, shallow roots can't support huge rainforest trees, so many tropical trees have developed huge buttress roots.
Different parts of the tree grow at different times of the year. A typical pattern is for most of the foliage growth to occur in the spring, followed by trunk growth in the summer and root growth in the fall and winter. Not all trees follow the same pattern. Most trees do not have a tap root. Tree roots do not grow very deep. Most tree roots are in the top 12 inches of soil. Tree roots often extend two to three times the width of the tree. Roots do not have green chlorophyll. Roots store more starch than the trunk. Roots do not have a central pith (soft central tissue) while the trunk does.