Tag: biology
Questions Related to biology
If there is no greenhouse effect, then the average temperature at surface of earth would have been
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$ 15 $
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$ -18 $
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$ -6 $
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$ 10 $
Which of the following is correct regarding 'El Nino' effect?
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Temperature rise leads to odd climatic changes
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Cutting down the use of fossil fuels
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Planting more trees
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Slowing down the growth of human population
Warm ocean surge of Peru current recurring every 5-8 years or so in the East Pacific of South America is widely known as.
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Gulf Stream
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Aye Aye
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El Nino
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Mangox
EI Nino describes the unusual warming of surface waters in the eastern tropical pacific ocean. This occurs when the normal trade winds weaken or get reverse which lets the warm water flow in the eastern Pacific instead towards the west. Thus it forms oscillation in the ocean-atmosphere.
Which of the following cause green house effect?
(i) Deforestation
(ii) Emission of gases from factories
(iii) Melting of polar ice
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Only (i) and (ii)
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Only (i) and (iii)
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Only (ii) and (ii)
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(i), (ii) and (iii)
Which of the following is not a greenhouse gas?
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$N _2O$
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CFC
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$O _3$
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$SO _2$
The gases which are transparent to solar radiation but retain and partially reflect back long wave heat radiations are called greenhouse gases. The various greenhouse gases are carbon dioxide, methane, chlorofluorocarbons and nitrous oxide. Other gases of minor significance are water vapour and ozone. Thus, the correct answer is option D.
Which of the following is a green house gas?
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CO
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CO$ _2$
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H$ _2$
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N$ _2$
Carbon dioxide is normally a non-polluting gas and is required for the normal process of photosynthesis by green plants. However, higher atmospheric concentrations of carbon dioxide due to the high rate of emission from the vehicle and deforestation leads to heating of earth and global warming.
Increase of temperature due to scattering of energy is by ozone, CO$ _2$ and water vapour, is known as
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Radioactivity
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Ozone effect
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Solar reaction
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Greenhouse effect
Global warming is the overheating of the earth due to the increased concentration of greenhouse gasses. Greenhouse gasses generally traps the radiations of the earth which leads to increase in the temperature of the earth and global warming. The greenhouse gasses includes water vapor, carbon dioxide, methane, nitrous oxide, and ozone.
Checking of radiating heat by atmospheric dust, O$ _3$, CO$ _2$ and water vapours is
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Greenhouse effect
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Solar effect
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Ozone layer effect
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Radioactive effect
The concentration of oxides increases due to the high rate of emission from the vehicle and other human activities like deforestation. The oxides form a layer which traps solar radiation to escape the earth atmosphere which leads to global warming.
The term greenhouse effect was given by
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Fourier
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Tyndall
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Arrhenius
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Linnaeus
Svante Arrhenius, a Swedish scientist, in 1896 gave the theory related to the effects of the combustion-released carbon dioxide. He depicted the relation between the concentration of the carbon dioxide and the increase in temperature due to it. The greenhouse effect refers to the trapping of the infra-red rays reflected by the earth’s surface by the gases present in the troposphere. It is a natural process and is responsible for maintaining the survivable temperature in earth. However, anthropogenic release of the greenhouse gases has caused the events of global warming. Hence, the correct answer is 'Svante Arrhenius'.
Increase in atmospheric temperature due to $CO _2$ is
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Pasteur effect
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Blackman effect
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Emerson effect
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Green-house effect