Month: December 2020

Define living beings. Discuss the important characteristics of living organisms?

Living Beings or Living Organisms: Living organisms are those which possess the characteristic of life and are essentially made up of a life-giving substance called Protoplasm which forms cells and tissues of one kind or the other. Example- plants and animals are living beings. Important characteristics of Living Organisms: Metabolism: Living things have the ability

Conservation of Natural Resources

Conservation of Natural Resources: The natural resources are of two kinds- Renewable and Non-renewable. Renewable natural resources reproduced and, thus, restore themselves in a natural way (example- when trees are cut, they can grow again; soil forms again; animals reproduce their kind). They include soil, water, vegetation (forests and other plants), wildlife and air. Non-renewable

Ecological Crisis

Ecological Crisis: Ecological crisis is the severe ecological imbalance in nature. Different forms of life (all plants, insects, birds, animals etc.) living in a particular area share a particular environment and depend on each other, directly or indirectly, for their survival. Such a type of association is said to form a system called biological community.

Terrestrial Biomes

Terrestrial Biomes: Various physical factors such as sunlight (intensity and duration), temperature, rainfall and seasonal changes determine the patterns of life and hence the types of biomes on land. Let us, now, consider the various terrestrial biomes. Forest Biomes: There are four kinds of forest biomes. These are- Tropical Evergreen Forests (or Tropical Rain Forests):

Aquatic Biomes

Aquatic Biomes: One of the most essential requirements of life is water. It is available in plenty in the rivers, ocean, large lakes and ponds. Various ecologically essential factors which control and regulate the aquatic life are oxygen content, salinity, temperature, pressure, light, tides and water currents. The aquatic life is of three categories. These

Periodic Law of Mendeleev

Periodic Law of Mendeleev: Newlands concept of arrangement of elements was further developed to a large extent by Mendeleev (1869), a Russian chemist. Mendeleev pointed out that when the elements are arranged in the order of their increasing atomic weights, those which are chemically similar recur at regular intervals. This relation between the elements was

The Big Picture: Atmanirbhar Bharat 3.0

Atmanirbhar Bharat 3.0: Cloud Formation And Types of Clouds Ecosystem Ecological Pyramids and its Types Ecological Succession or Biotic Succession Important Biogeochemical Cycles Global Warming: Effects and Control Measures Physiography Of India Rivers of India Seasonal Rhythm Of Indian Monsoon Forest and Wildlife Resources Gist Of NCERT Geography Download NIOS Book For Ancient India.