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Population Density - It is the most important parameter indicating the pressure of population on land, water and other resources. Usually, higher population density (expressed as number of people (square kilometers) is found in urban areas than in rural areas. Regional disparities of density of pop..

H h y d r a t i o n = - 2760 kJ mol - 1 Net Energy change = - 874 kJ mol - 1 Thus, it is clear that during the formation of MgCl2 in water, more energy is released and accordingly it is more readily formed. 9. What are the factors that govern the solubility of a salt in wate..

The Need to Manage Our Resources - Everything that we use or consume - food, clothes, vehicles, tools, petrol, furniture, medicines, books, toys, and the infrastructure of electricity, roads bridges, and buildings are obtained from resources on this earth. The only thing one gets from outside is th..

The Forest Conservation Act 1980 was passed to check the indiscriminate use of forest for other purposes. This act was amended in 1988 which made provisions for dealing with violators. Indian Wildlife Protection Act 1972 was re-amended in 1983, 86 and 1991. It provides special protection to wildlif..

Each crop is, in fact, an adaptation from wild type to a cultivated type. Wild types or wild species of each crop can be traced to their natural habitat where such species are grown naturally without human interference. Even cultivated species of a crop exhibit greatly varying climatic adaptations...

There are many reactions that are affected by electromagnetic radiations. Chemical reactions, which occur in the presence of visible and ultraviolet light are called photochemical reactions. Photochemical reactions occur only when photons of radiant energy (h n ) are absorbed by the reactant. Absor..

The Forest Conservation Act 1980 was passed to check the indiscriminate use of forest for other purposes. This act was amended in 1988 which made provisions for dealing with violators. Indian Wildlife Protection Act 1972 was re-amended in 1983, 86 and 1991. It provides special protection to wildlif..

>Green chemistry encompasses all aspects and types of chemical process including synthesis, catalysis, analysis, monitoring, separations and reaction conditions, which reduce or eliminate the use or generation of hazardous substances. Green chemistry technologies can be categorized into one or more..

. Sunderlal Bahuguna and Pandey in the Uttrakhand Himalayas started the 'Chipko' movement for protecting trees in a typical conflict between commercial wood contractors who were cutting fully grown trees and villagers who would harvest them by only lopping some branches so that they would grow back..

Conservation is defined as judicious use to avoid wastage of materials and degradation of environment. Conservation of environment involves the conservation of the natural resources. The non-renewable resources have to be conserved as they cannot be replenished. The reserves of the resources such a..