Curtain Walls. Curtain wall systems clad a building envelope with glass and aluminum to protect the interior from the elements and creates a safe and comfortable work environment for the building occupants. Curtain walls are designed to only carry their own weight.
A. PHOTOSYNTHESIS Photosynthesis n: A process by which green plants and other organisms produce simple carbohydrates from carbon dioxide and hydrogen, using energy that chlorophyll or other organic cellular pigments absorb from radiant sources.
Photosynthesis. Light is important to plants because it allows them to make their own food. This process, called photosynthesis, is when a plant absorbs light energy and combines it with water and carbon dioxide to create food -- starches and sugars -- as well as water and oxygen.