physical features ( social science)

Summary - The grouping of elements with similar properties together and the separation of elements with dissimilar properties is known as classification of elements. The table, which classifies elements on the basis of their properties, is called the periodic table. The earliest classification was ..

Heredity - An important result of the reproductive cycle is production of similar featured individuals for generations. The transmission of characteristics through successive generations refers to heredity. These characteristics include all physical, physiological and psychologi..

Environment is defined as the surroundings in which the organism lives. The environment may be the physical environment, the chemical environment or the biological environment. Thus, the environment has two components - abiotic and biotic. The abiotic environment includes the air (atmosp..

Environment refers to the natural elements that make up the earth and surround living organisms The abiotic or physical aspects of the environment refer to elements like air, soil, water etc. The biological or biotic components of environment are the plants and animals Natural res..

Heredity may be defined as the transmission of characteristics through generations Variation may be defined as differences among individuals of a species Both heredity and variation play important roles in evolution of organisms The study of the mechanism of transmission of characteristi..

The dams submerge forever the traditional living areas and cause loss of traditional sources of livelihood. A large number of villagers and tribals who have been displaced by various development projects are largely poor. They do not get any benefits from these projects and are alienated from the..

Personal health Characteristics and changes in populations Types of resources Changes in environments Science and technology in local challenge..

Personal health Populations, resources, and environments Natural hazards Risks and benefits Science and technology in societ..

Personal health Populations, resources, and environments Natural hazards Risks and benefits Science and technology in societ..