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Capacity to do work is known as energy. It is very important input for all our activities like cooking food, driving vehicle and running industries. The most important challenge that humanity is facing in 21st century is availability of clean, secure and sustainable energy supply.
Energy sources are broadly divided into two categories. Renewable and renewable energy sources which are further divided into many sub categories:
These sources are regenerated by natural processes so that can be used indefinitely. These are:
(i) Solar energy (ii) water (iii) wind
(iv) Tidal (v) biomass (vi) geothermal
(viii) Ocean thermal energy
WHY CONSERVE WILD LIFE ? 1 . ECONOMIC IMPORTANCE OF WILD LIFE - (i) Plants - (ii) Animals - (iii) Micro organisms - 2 . ECOLOGICAL BALANCE -
What is meant by the arch reflex? In some situations the movement of the skeletal striated muscles does not depend upon commands of the superior motor neurons, i.e., it is not
MECHANISM OF URINE FORMATION - Production of urine is uripoisis or diuresis. First of all it was explained by Kushney. Nephron separates acidic urine from basic blood, so ma
Define Features of male and female ascaris lumbricoides? i) Ascaris lumbricoides is commonly called round worm. ii) Body is elongated, cylindrical, tapering at bot
Q. Revenue Recognition on Long-term Construction Projects? Revenue Recognition on Long-term Construction Projects Company identifies revenue from a long-term construction proje
State the changes in society which could contribute to a falling death rate. The changes in society which could contribute to a falling death rate are: (i) improvements in
There are three levels of diversity viz. genetic, species and ecosystem diversity. In effect, these levels cannot be separated. Each is important, interacting with a nd influencin
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Secondary Egg Envelopes These are secreted by oviducts and other accessory parts of genital organs while the egg is passing through them from ovary to the exterior. a) In
write the classification of chordata?
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