an ice cube, a glass of cold water, and a swimming pool are each exposed to the same amount of sunlight on a hot day. after five minutes, the ice cube is melted and the cold drink is two degrees warmer, but the temperature of the swimming pool remains unchanged. what is the ...
The tree is known for the strong wintergreen scent of its bark and leaves. Culture: Sweet birch prefers deep, fertile, moist, well-drained soil that is slightly acidic. The tree is hardy to Zone 3 and will grow on rocky, dry sites in the wild, but hot, dry sites should be avoided if possible. It has been able to handle heavy soils in the Midwest.
Holly trees (Ilex opaca) are evergreen trees with prickly, glossy green leaves and red berries. The tree grows in U.S. Department of Agriculture plant hardiness zones 6 through 9. Holly trees grow up to 40 feet tall, but they are slow growers gaining only about 9 feet every 20 years. They prefer full sun or light shade and rich, well-draining, slightly acidic soil. Growing hollies from berries is a slow task because they require a long stratification and germination period.