Agroecology

 Agroecology Agroecology shares much in common with other approaches to sustainable farming. Agroecology is farming that “centers on food production that makes the best use of nature’s goods and services while not damaging these resources.”  Farming thrives when it works with local ecosystems, for example, improving soil and plant quality through available biomass … Read more Agroecology

Demographic Dividend And Transition

 Demographic dividend and transition Demographic dividend The term “demographic dividend” (DD) refers to the accelerated economic growth that a country can achieve when it has a low dependency ratio or, in other words, when the proportion of its population that is of working age is greater than the proportion of its population that … Read more Demographic Dividend And Transition

Earth And Its Geological Time Scale

 :-   Origin of the Earth:- EARLY THEORIES:- A large number of hypotheses were put forth by different philosophers and scientists regarding the origin of the earth. One of the earlier and popular arguments was by German philosopher Immanuel Kant. Mathematician Laplace revised it in 1796. It is known as Nebular Hypothesis. The hypothesis … Read more Earth And Its Geological Time Scale

Pressure And Wind Belt1

 Pressure and wind belts Atmospheric pressure, also called barometric pressure, force per unit area exerted by an atmospheric column (that is, the entire body of air above the specified area). Atmospheric pressure can be measured with a mercury barometer (hence the commonly used synonym barometric pressure), which indicates the height of a column … Read more Pressure And Wind Belt1

Distribution Of Rainfall In India

 Distribution of rainfall in India India has a monsoon type of climate. Rainfall occurs only for about three to four months and is uneven, unreliable and erratic in nature. Rainy season in India extends from June to mid- September. Sometimes at the time of arrival, the rainfall pours heavily which is commonly known … Read more Distribution Of Rainfall In India

Cyclones

 Cyclones: Types and Mechanism Cyclone is a system of low atmospheric pressure in which the barometric gradient is steep. Cyclones represent circular fluid motion rotating in the same direction as the Earth. This means that the inward spiralling winds in a cyclone rotate anticlockwise in the Northern Hemisphere and clockwise in the Southern … Read more Cyclones

Mains Booster-Urban environment

Urban environment An urban environment is the region surrounding a city. Most inhabitants of urban areas have nonagricultural jobs. Urban areas are very developed, meaning there is a density of human structures such as houses, commercial buildings, roads, bridges, and railways. Natural urban environment The natural urban environment incorporates not only parks and gardens but … Read more Mains Booster-Urban environment