What is Ecology ?
Ans - Ecology (term used by Relter) deals with various principles which govern the relationship between organisms and their environment.Pyramid of number is upright in grassland and pond ecosystem while inverted in tree ecosystem.
* Pyramid of blomass is upright in grassland and forest ecosystem where as inverted in pond ecosystem .
* Pyramid of energy is always upright.
What is Pollution ?
Ans - Motor vehcle contribute 60% of air pollution in major cities.Photochemical smog comparision of 03,H2O2,PAN etc.
* CO has 250 times more binding affinity with hemoglobin as compared to O2.
* Acid rain is composed of H2SO4 and HNO3.
* Chlorofluorocarbons released into stratosphere release freecholorine atom that causes depletion of ozone.
* Sewage is major sourceof water pollution.
* Bioremediation is the process of using micro-organisms to remove environmental pollutant, eg- Using oil-Zapper devolped by TERI to prevent oil spils.
* Biomegnification The increase in concentration of persistent chemicals in organisms in successive trophics levels.
* Endosulfan in southern states for cashew crops whichis now banned world over.
* Chernobyl disaster occurred in Ukrane (USSR) 26thn april,1986 due to explosion of nuclearpower station.
* Nitrate fortilisers cause blue baby syndrome or methemoglobinemia.
* Noise pollution is measured in decibels (Genarally sound beyond 80 dB is termed as noise).
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