ENVIRONMENT POLLUTION

  defined as ‘an addition or excessive addition of certain materials to the physical environment (water, air and lands), making it less fit or unfit for life’. Pollutants are the materials or factors, which cause adverse effect on the natural quality of any component of the environment. Classifications According to the form in which they … Read more ENVIRONMENT POLLUTION

ECOLOGY

    Ecology is  defined “as a scientific study of the relationship of the living organisms with each other and with their environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas-Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more ECOLOGY

Environment and Ecological Issues

ECOLOGY   Ecology is  defined “as a scientific study of the relationship of the living organisms with each other and with their environment.” The classical texts of the Vedic period such as the Vedas, the Samhitas, the Brahmanas and the Aranyakas-Upanishads contain many references to ecological concepts .The Indian treatise on medicine, the Caraka- Samhita … Read more Environment and Ecological Issues

Broad Physical features

  Geomorphology Earth’s Interior – Earthquake Waves – Shadow Zone Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side.  Earthquake ray paths and arrival times are more complex than illustrated in the animations, because velocity in the … Read more Broad Physical features

Greenhouse effect

  The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. It is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a … Read more Greenhouse effect

Tropical and temperate cyclones

    The atmospheric disturbances which involve a closed circulation about a low pressure centre, anticlockwise in the northern atmosphere and clockwise in the southern hemisphere are called cyclones. They fall into the following two broad categories: (a) Extra-tropical or Temperate and (b) tropical cyclones. (a) Temperate Cyclones Temperate cyclones are formed along a front … Read more Tropical and temperate cyclones

Composition, Structure and Stratification of the atmosphere

  An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. Many of the planets in this solar system have atmospheres, but none that we know of have an atmosphere quite like ours – one that can support life. The … Read more Composition, Structure and Stratification of the atmosphere

 Geomorphic processes; Weathering, mass wasting, erosion and deposition,soil formation,Landscape cycles, ideas of Davis and Penck

  Table of content Weathering Mass Wasting Erosion and Deposition Soil Formation Landscape (Geological) Cycles Davis Cycle Penck Cycle Weathering   Weathering is the general term applied to the combined action of all processes that cause rock to disintegrate physically and decompose chemically because of ex- posure near the Earth’s surface through the elements of … Read more  Geomorphic processes; Weathering, mass wasting, erosion and deposition,soil formation,Landscape cycles, ideas of Davis and Penck

Air Pollution

  Aggravated because of four developments: Increasing traffic, growing cities, rapid economic development, and industrialization contamination of air by the discharge of harmful substances Major air pollutants and their sources Carbon monoxide (CO) It is a colourless, odourless gas that is produced by the incomplete burning of carbon – based fuels including petrol, diesel, and … Read more Air Pollution

Environment Pollution: An Introduction

Environment Pollution is  defined as ‘an addition or excessive addition of certain materials to the physical environment (water, air and lands), making it less fit or unfit for life’. Pollutants are the materials or factors, which cause adverse effect on the natural quality of any component of the environment. Classifications According to the form in … Read more Environment Pollution: An Introduction