Dark Specialist D's Note

People surprised that Antartica is nearly twice the size of U.S. Antartica was coined to mean opposite to the Artic. The climate of the two areas is very different. Antartica is the coldest area in the world and 30 degrees colder than the Artic. Mean temperature run below zero in nearly 10,000 feet high. Antartica rise about freezing in the summer, but North Pole rise above freezing. Winter temperature sometimes fall below -100 degrees Fahrenheit at the American South Poles Station. A temperature of -127 degrees Fahrenheit was measured   in August 1960 on south polar plateau. It is the world’s record low temperature. Animals and plants of two regions are very different. Moses, lichens, and algae are found in Antartica. Penguins are not found in Artic. Foxes, bears, reindeer, and lemmings lives in Artic. Ice is great feature of Antartica. More than 4.5 million square miles of ice sheet cover the area. Antartica store 85 percent of the total world supply of ice. The icecap is very thick,...

Green Revolution is an approach to agriculture to double the food production. It can make new types of grain and new extensive chemicals and farm machinery. Green Revolution is no longer appear to be successful because expensive of this metod. This method needs expensive chemical, insecticides, and watering system that many farmers cannot buy. Green Revolution has bought social and political conflict because the cost of this new methods. Large landowners can buy land from smaller farmers. Social tension increase this situation. Government need new methods to decrease hungry people and to be less destructive.

According to the United Nations' World Population Prospects: The 2008 Revision Population Database, crude birth rate is the number of births over a given period divided by the person-years lived by the population over that period. It is expressed as number of births per 1,000 population. The birth rate is an item of concern and policy for a number of national governments. Italy and Malaysia want to increase the national birth rate using measures such as financial incentives or provision of support services to new mothers but others aim to reduce the birth rate. Population control is the practice of artificially altering the rate of population growth. Population control has been implemented by limiting the population's birth rate. Population control can be done in many methods such as physical methods, and behavioral methods. Physical methods may work in a variety of ways, among them: physically preventing sperm from entering the female reproductive tract, hormonally prevent...

According to the United Nations' World Population Prospects: The 2008 Revision Population Database, crude birth rate is the number of births over a given period divided by the person-years lived by the population over that period. It is expressed as number of births per 1,000 population. The birth rate is an item of concern and policy for a number of national governments. Italy and Malaysia want to increase the national birth rate using measures such as financial incentives or provision of support services to new mothers but others aim to reduce the birth rate. Population control is the practice of artificially altering the rate of population growth. Population control has been implemented by limiting the population's birth rate. Population control can be done in many methods such as physical methods, and behavioral methods. Physical methods may work in a variety of ways, among them: physically preventing sperm from entering the female reproductive tract, hormonally preven...

The term worm is used to describe many different distantly-related animals which have a long cylindrical body and no legs. They are technically decomposers. Worms usually have a cylindrical, flattened, or leaf-like body shape and are often without any true limbs or appendages. Instead, they may have bristles or fins that help them move. A few have light-sensing organs. Worms may also be called helminths, particularly in medical terminology when referring to parasitic worms. Worm species differ in their abilities to move about on their own. Many species have bodies with no major muscles, and cannot move on their own. They must be moved by forces or other animals in their environment. They are a type of muscular hydrostat. In Helminthology, the study of worms, worms are classified in three phylums. The first of these includes the flatworms. They have a flat, ribbon- or leaf-shaped body with a pair of eyes at the front. In this phylum divided in three groups or classes. Turbellaria, Trema...