The botanist tried to figure out what made the tree die. The chemical that plants use to make food is called chlorophyll. A chemical reaction happens when plants use chlorophyll to change the air and water they take in into sugar. We compost our table scraps in a special area in our back yard. When fallen leaves decay , they become part of the soil.
Trees can help keep heavy winds and rains from causing soil erosion .
The forester helps to make sure the trees in the parks are healthy. When I grow up, I think I want to study forestry . The greenhouse has many windows so the plants can get lots of sunlight. Sometimes we harvest trees to make furniture and other wood products. The herpetologist told me the difference between frogs and toads.