Largest reptile in the world
A. Dragon
B. Anaconda
C. Crocodile
D. Python
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The movement "Beej Bachao Andolan" was aimed for the conservation of _______
A. trees
B. shrubs
C. crops
D. coconut
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A dim, "watery" sun visible through a gray sheet-like cloud layer is often a good indication of ____ clouds.
A. Stratocumulus
B. Cirrostratus
C. Cumulonimbus
D. Altostratus
E. Nimbostratus
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The source of energy in an ecosystem is
A. ATP
B. Sunlight
C. D.N.A
D. R.N.A
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Which one of the following problems is not created by noise pollution?
A. Diarrhoea
B. Hypertension
C. Deafness
D. Irritation
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In grazer food chain the living plants are directly
A. destroyed
B. consumed
C. decayed
D. grown
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During the course of a year, the sun will disappear from view near the North Pole on what date?
A. June 21
B. September 23
C. December 23
D. January 1
E. March 21
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_______ trees shed their leaves during winter and hot summer.
A. ever green
B. coniferous
C. deciduous
D. Shola
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Average total rainfall is 100 - 150 cm in __________ , located in Australia, South America and Africa.
A. tropical savannas
B. chaparrals
C. deciduous forest
D. temperate forest
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Which one is nature's cleaner?
A. Consumers
B. Producers
C. Decomposers and Scavengers
D. Symbionts
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As the air temperature increases, with no addition of water vapor to the air, the dew point will:
A. Remain the same
B. Increase
C. Decrease
D. Increase and become equal to the air temperature
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As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:
A. Remain the same
B. Increase
C. Decrease
D. Increase until it becomes equal to the dew point temperature
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Green House effect is caused by
A. Increase in CO2
B. Increase in O2
C. Decrease in O2
D. Decrease in CO2
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If the air temperature remains constant, evaporating water into the air will ____ the dew point and ____ the relative humidity.
A. Increase, increase
B. Increase, decrease
C. Decrease, increase
D. Decrease, decrease
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If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would ____, and the wavelength of peak emission would shift toward ____ wavelengths.
A. Increase, shorter
B. Increase, longer
C. Decrease, shorter
D. Decrease, longer
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The presence of high coliform counts in water indicates
A. contamination by human wastes
B. phosphorus contamination
C. decreased Biological Oxygen Demand
D. hydrocrbon contamination
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As it travels along the food chain, the concentration of DDT
A. increases
B. remains constant
C. decreases
D. fluctuates randomly
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Industrial melanism is an example of
A. protective resemblance with the surrounding
B. drug resistance
C. defensive adaptation of skin against UV radiations
D. darkening of skin due to industries
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Coal is a __________ resource.
A. abiotic
B. inorganic
C. deforestation
D. none of the above
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Extensive planting of trees to increase forest cover is called
A. Afforestation
B. Agroforestry
C. Deforestation
D. Social forestry
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