Tag: life is precious
Questions Related to life is precious
What are 'anthropogenic' sources of CO?
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Industries, Motor Vehicles
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Forest fire
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Volcanic Eruption
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Deforestation
In big cities automobiles are responsible for ...... % of air pollution.
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50%
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70%
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80%
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100%
Vehicle emissions are responsible for 70% of the country's air pollution. Exhaust from vehicles has increased eight-fold over levels of twenty years ago. Air quality is worst in big cities like Kolkata, Delhi, Mumbai, Chennai, etc.
Air pollution is caused by
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Smoke
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Automobile exhausts
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Radioactive substances
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All of the above
Air pollution can be defined as the mixing of harmful gases or chemical substances in the air, that results into harmful effects on flora as well as fauna. The major pollutants of air pollution includes the harmful untreated gases that are released into the atmosphere from factories, also the carbon monoxide gas released from the burnt fuel in the automobiles. Sometimes the leakage of radioactive substance also led to adverse effects on living organism.
Air pollution is maximum due to
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Sewage and pesticides
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Automobile exhausts and industrial wastes
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Sewage and effluents
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Detergents and pesticides
Burning of fossil fuels leads to their combustion causing the release of carbon dies oxide in air. It also releases other harmful gases that cause air pollution. So, option B " Automobile exhausts and industrial wastes" is the correct answer.
The air around us has various types of unwanted particles, such as
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Smoke
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Dust
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Pollens
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All of the above
The air around us has various types of unwanted suspended particles like- smoke, dust, pollens etc. When we inhale these particles get trapped in the hair present in our nasal cavity. However, sometimes these particles may get past the hair present in our nasal cavity. Then they irritate the lining of the cavity as a result of which we sneeze. Sneezing expels these foreign particles from the inhaled air and a dust-free, clean air enters our body.
Which of these activities causes air pollution?
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Rapid urbanization and industrialization
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Deforestation
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Burning of fuels like coal and petroleum
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All of the above
Air pollution is due to various substances that holds the potential to hinder the atmosphere or the well being of the living beings surviving in it. The sustainment of all things living is due to a combination of gases that collectively form the atmosphere; the imbalance caused by the increase or decrease of the percentage of these gases can be harmful for survival. All the above mentioned a, b & c points are the cause of air pollution.
Human activities such as transportation and manufacturing result in the greatest impact on the Earth through
III. Air pollution
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I only
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II only
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III only
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I and II only
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II and III only
Which of the following doesnot cause air pollution?
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Increasing forest reserves
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Using pesticides in farms
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Developing housing estates
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Quarrying for limestone
The use of excessive chemical fertilizers and pesticides results in the water pollution and soil pollution. The construction of the housing estates results in air pollution. The quarrying of the limestone also results in the release of the particles causing air pollution. The increase in the forest reserves does not result in any kind of pollution.
Huge amount of toxic chemicals leak into the surrounding eco system because of
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Industries
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Mining
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Pestisides
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Modern technology
Lead (Pb) causes
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Soil pollution
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Air pollution
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Radioactive pollution
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All the above
Lead is an important pollutant of soil and atmosphere. Lead is a heavy metal and very immobile element. Hence, the lead may quickly reach very high concentrations locally. Lead is a prominent pollutant released from factories manufacturing dry cells and batteries. In the atmosphere, lead is released by combustion of fossil fuels. Fossil fuels contain lead compounds as an additive as antiknock agents. Combustion of such fuel in vehicles leads to air pollution.