Recent questions tagged sec-a

What is the best solution for the treatment of electronic wastes?

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What is reforestation?

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What do you understand by biomagnification?

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What is an algal bloom?

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Name an industry which can cause both air and thermal pollution and as well as eutrophication.

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Mention any two examples of plants used as wind breakers in the agricultural fields.

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Blends of polyblend and bitumen, when used, help to increase road life by a factor of three. What is

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What is the raw material for polyblend?

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It is a common practice to undertake desilting of the overhead water tanks. What is the possible sou

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Name the city in our country where the entire public road transport runs on CNG.

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In which year was the Air (prevention and control of pollution) Act amended to include noise as air

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Use of lead free petrol or diesel is recommended to reduce the pollution emitted by automobiles. Wha

asked Jul 12 by pady_1

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How is presently occurring species extinction different from earlier mass extinctions?

asked Jul 11 by pady_1

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Suggest a place where one can go to study coral reefs, mangrove vegetation and estuaries. 

asked Jul 11 by pady_1

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List any two major causes other than anthropogenic causes of the loss of biodiversity. 

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What is the expanded form of IUCN? 

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What does the term 'frugivorous' mean?

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Define gene pool.

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What does 'Red' indicate in the IUCN red list (2004)? 

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What is common to earthworm, mushroom, soil mites and dung beetle in an ecosystem? 

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Define self sustainability. 

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Give any two examples of xerarch succession. 

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Why the rate of assimilation of energy at the herbivore level is called secondary productivity?&nbsp

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Why are oceans least productive? 

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Is the common edible mushroom an autotroph or a heterotroph? 

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What is the ultimate source of energy for the ecosystem?

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Among bryophytes, lichens and ferns which one is a pioneer species in a xeric succession?

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Name any two organisms which can occupy more than one tropic level in an ecosystem. 

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Justify the pitcher plant as a producer. 

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Name an omnivore which occurs in both grazing food chain and the decomposer food chain. 

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Under what conditions would a articular stage in the process of succession revert back to an earlier

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What does the base tier of the ecological pyramid represent? 

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Name an organism found as secondary carnivore in an aquatic ecosystem. 

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Which element is responsible for causing soil salinity? At what concentration does the soil become s

asked Jul 10 by pady_1

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What is a tree line?

asked Jul 10 by pady_1

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Give the scientific name of any two microorganisms inhibiting the human intestine.

asked Jul 10 by pady_1

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In an association of two animal species, one is a termite which feeds on wood and the other is a pro

asked Jul 10 by pady_1

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Give a suitable example for commensalism. 

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Define aestivation. 

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What are the organisms that feed on plants sap and other plant parts called?

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What would be the growth rate pattern, when the resources are unlimited? 

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Emergent land plants that can tolerate the salinities of the sea are called?

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What is Mycorrhiza? 

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Name the association in which one species produces poisonous substance or a change in environmental

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What is commensalism? 

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What is the interaction between two species called? 

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Define stenohaline species.

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Species that can tolerate wide range of salinity are called?

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What are eurythermic species? 

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Species that can tolerate narrow range of temperature are called ?

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