Global warming is caused by
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Warming in the stratosphere is mainly caused by:
A. Absorption of ultraviolet radiation by ozone
B. Release of latent heat energy during condensation
C. Chemical reactions between ozone and chlorofluorocarbons
D. Frictional heating caused by meteorites
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Major consumer of wood from forest is ___________
A. Thermal Power Plant
B. Paper Industry
C. Chemistry Industry
D. none
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_________ is the 12th Mega Biodiverse Country in the world.
A. India
B. America
C. China
D. Sri Lanka
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Which plants die after flowering?
A. Lotus
B. Bamboo
C. Chrysanthemum
D. Butea
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Although the polar regions radiate away more heat energy than they receive by insolation in the course of a year, they are prevented from becoming progressively colder each year by the:
A. Conduction of heat through the interior of the earth
B. Concentration of earth's magnetic field lines at the poles
C. Circulation of heat by the atmosphere and oceans
D. The insulating properties of snow
E. Release of latent heat to the atmosphere when polar ice melts
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The intermediate developmental stages in the ecological succession is called
A. sere
B. ecesis
C. climax
D. nudation
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The final stable community in an ecological succession is called the
A. final community
B. ultimate community
C. climax community
D. seral community
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Typically, water vapour occupies about what percentage of the air's volume near the earth's surface?
A. About 78 percent
B. About 21 percent
C. Close to 10 percent
D. Less than 4 percent
E. None of these
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Heavy dust can cause
A. leaf blights
B. opening of stomata
C. closure of stomata
D. browning of leaves
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This holds a planet's atmosphere close to its surface:
A. Radiation
B. Gravity
C. Cloud cover
D. Moisture
E. Pressure
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During the afternoon the greatest temperature difference between the surface air and the air several meters above occurs on a:
A. Clear, calm afternoon
B. Clear, windy afternoon
C. Cloudy, calm afternoon
D. Cloudy, windy afternoon
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Ideal conditions for a strong radiation inversion:
A. Clear, calm, dry, winter night
B. Clear, calm, moist, summer night
C. Cloudy, calm, moist, winter night
D. Cloudy, windy, moist, summer night
E. Clear, windy, dry, summer night
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Example of primary pollutant
A. SO2
B. NO2
C. CO
D. hydrocarbons
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In a photochemical smog, which gas is an eye and mucous membrane irritant?
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_________ element had guided the earlier navigators to keep them on right path.
A. Magnetite
B. Carbon
C. Coal
D. Uranium
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Heat is energy in the process of being transferred from:
A. Hot objects to cold objects
B. Low pressure to high pressure
C. Cold objects to hot objects
D. High pressure to low pressure
E. Regions of low density toward regions of high density
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Which one is true?
A. symbiosis when neither population affects each other
B. symbiosis when the interaction is useful to both the populations
C. commensalism when none of the interacting populations affect each other
D. commensalism when the interaction is useful to both the populations
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A population is a group of
A. individuals in a species
B. species in a community
C. communities in an ecosystem
D. individuals in a family
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Rising air cools by this process:
A. Expansion
B. Evaporation
C. Compression
D. Condensation
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