International System of Units
>Unit of Mass is defined as "the mass of a particular solid cylinder made of platinum-iridium alloy kept in Paris, known as the International Prototype Kilogram". Unit of time, second, is equal to the duration of 9192631770 periods of the radiation corresponding to the transition between ..
Factors Affecting Photosynthesis - External Factors
Photosynthesis is influenced by two categories of factors - external or environmental and internal or plant factors. According to the law of limiting factors, put forward by F.F.Blackman in 1905, photosynthesis is limited by the most limiting factor. This means that, at any give..
External Factors Affecting Photosynthesis
Factors Affecting Photosynthesis - External Factors - Photosynthesis is influenced by two categories of factors - external or environmental and internal or plant factors. According to the law of limiting factors, put forward by F.F.Blackman in 1905, photosynthesis is limited by ..
Causes of Extinction of Wildlife
Wildlife species may become totally extinct if no measures are taken to protect them. Some of reasons for extinction of wild life are. a) Destruction of their natural habitats - by environmental pollution, deforestation, soil erosion, overgrazing, increased urbanization, forest fires, and..
Enthalpy (H) and Enthalpy Change (DH)
. (b) If the reaction proceeds with decrease in volume at constant pressure, the work is done on the system and heat evolved will be greater than the heat evolved at constant volume. Thus, it can be concluded from the above discussion that heat changes occurring at constant pressure and constant te..
Green Chemistry
. The green chemistry programme is now a world wide effort of many governments, academia, scientific societies, industry, trade organizations, small business, non government organizations, research centers and other government agencies to promote the use of chemistry for pollution prevention throug..
Enthalpy and Enthalpy Change
) If the reaction proceeds with decrease in volume at constant pressure, the work is done on the system and heat evolved will be greater than the heat evolved at constant volume. Thus, it can be concluded from the above discussion that heat changes occurring at constant pressure and constant temper..
Environment Conservationists and Nature Enthusiasts
Lastly, we come to the nature and wildlife enthusiasts who are not in any way dependent on the forests. Environmentalists and Nature Conservationists, NGOs like the World Wide Fund for Nature (WWF), Centre for Science and Environment (CSE), International Union for Conservation of Nature..
Climatic Factors - Temperature
. All invertebrates, lower chordates, cyclostomes, fishes, amphibians and reptiles have no internal mechanism for thermal regulation, and their body temperatures vary with the surrounding environmental temperatures. Such animals are called cold blooded, ectothermic or poikilothe..
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