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Recent questions tagged sec-a
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What is the best solution for the treatment of electronic wastes?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is reforestation?
cbse
class12
ch16
exemplar
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biology
sec-a
environmental issues
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Jul 12, 2017
by
pady_1
1
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What do you understand by biomagnification?
cbse
class12
ch16
exemplar
theoryquestion
biology
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environmental issues
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Jul 12, 2017
by
pady_1
1
answer
What is an algal bloom?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Name an industry which can cause both air and thermal pollution and as well as eutrophication.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Mention any two examples of plants used as wind breakers in the agricultural fields.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Blends of polyblend and bitumen, when used, help to increase road life by a factor of three. What is
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
What is the raw material for polyblend?
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
It is a common practice to undertake desilting of the overhead water tanks. What is the possible sou
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Name the city in our country where the entire public road transport runs on CNG.
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
In which year was the Air (prevention and control of pollution) Act amended to include noise as air
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
Use of lead free petrol or diesel is recommended to reduce the pollution emitted by automobiles. Wha
cbse
class12
ch16
exemplar
theoryquestion
biology
sec-a
environmental issues
asked
Jul 12, 2017
by
pady_1
1
answer
How is presently occurring species extinction different from earlier mass extinctions?
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
Suggest a place where one can go to study coral reefs, mangrove vegetation and estuaries.
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
List any two major causes other than anthropogenic causes of the loss of biodiversity.
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
What is the expanded form of IUCN?
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
What does the term 'frugivorous' mean?
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
Define gene pool.
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
What does 'Red' indicate in the IUCN red list (2004)?
cbse
class12
ch15
exemplar
theoryquestion
biology
sec-a
biodiversity and conservation
asked
Jul 11, 2017
by
pady_1
1
answer
What is common to earthworm, mushroom, soil mites and dung beetle in an ecosystem?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Define self sustainability.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Give any two examples of xerarch succession.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Why the rate of assimilation of energy at the herbivore level is called secondary productivity? 
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Why are oceans least productive?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Is the common edible mushroom an autotroph or a heterotroph?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
What is the ultimate source of energy for the ecosystem?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Among bryophytes, lichens and ferns which one is a pioneer species in a xeric succession?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Name any two organisms which can occupy more than one tropic level in an ecosystem.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Justify the pitcher plant as a producer.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Name an omnivore which occurs in both grazing food chain and the decomposer food chain.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Under what conditions would a articular stage in the process of succession revert back to an earlier
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
What does the base tier of the ecological pyramid represent?
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Name an organism found as secondary carnivore in an aquatic ecosystem.
cbse
class12
ch14
exemplar
theoryquestion
biology
sec-a
ecosystem
asked
Jul 11, 2017
by
pady_1
1
answer
Which element is responsible for causing soil salinity? At what concentration does the soil become s
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What is a tree line?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Give the scientific name of any two microorganisms inhibiting the human intestine.
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
In an association of two animal species, one is a termite which feeds on wood and the other is a pro
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Give a suitable example for commensalism.
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Define aestivation.
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What are the organisms that feed on plants sap and other plant parts called?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What would be the growth rate pattern, when the resources are unlimited?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Emergent land plants that can tolerate the salinities of the sea are called?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What is Mycorrhiza?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Name the association in which one species produces poisonous substance or a change in environmental
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What is commensalism?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What is the interaction between two species called?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Define stenohaline species.
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Species that can tolerate wide range of salinity are called?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
What are eurythermic species?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
Species that can tolerate narrow range of temperature are called ?
cbse
class12
ch13
exemplar
theoryquestion
biology
sec-a
organisms and populations
asked
Jul 10, 2017
by
pady_1
1
answer
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