Crust refers to the top most upper layer of the earth's surface. Crust consists of two parts: SIAL and SIMA. Sial comprises Silicon and Auminium whereas Sima comprises Silicon and Magnesium. Sima is heavy in weight and sial is lighter in weight. Sima floats on Sial. Crust is of two types: Continental and Oceanic crust.
Atlantic ocean is the second largest ocean in the world. The age of the sea floor which is made up of materials erupted from volcanic explosion. Mid oceanic ridge formed due to volcanism and create a thick bed in the sea floor. By using color coded map deep to light shaded age of the ocean floor can be determined.
Yes, plants are absolutely alive. They may not be conscious, sentiment beings, but they still perform cellular respiration, make waste products, and generate biomass (get bigger).
Public is managed by several agencies at the state levels and the federal levels. The land is managed by the state government and development of the land takes place by the government.
Sometime the public occupy the land that is considered to be agricultural land. This land is also owned by the government and agencies at the state and the federal levels.
There are two kinds of respiration: Aerobic and Anaerobic. ... Aerobic respiration takes place in the presence of oxygen, produces a large amount of energy. Carbon dioxide and water are produced as the waste products. Anaerobic respiration takes place without the use of oxygen, produces small amounts of energy.
