NEET Practice Questions (MCQs) with Answers & Solutions

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Which is more important for water pollution

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Explanation

Arsenic is a carcinogen to humans and exposure from drinking contaminated water can increase the risk of skin, lung, bladder and kidney cancers, hypertension, diabetes, peripheral vascular disease, and skin lesions

Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicle in Delhi

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Explanation

It is fly ash. Fly ash, also known as flue-ash, is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases from the industries.

Pollution can be controlled by

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Explanation

All the above

All the Factors can cause pollution...

This is the fact point.....

If water pollution continues at its present rate, it will eventually

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Explanation

 

If water pollution continues at its present rate, it will eventually make oxygen molecules unavailable to water plants and kill them.


Also, it kills life that depends on water bodies. Dead fish, crabs, birds, sea gulls, dolphins and many other animals often wind up on beaches, killed by pollutants in their habitat (living environment).

In cities like Bombay and Calcutta, the major air pollutants are

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Explanation

Sulfur dioxide () is one of a group of highly reactive gasses known as oxides of sulfur. The largest sources of  emissions are from fossil fuel combustion at power plants (73%) and other industrial facilities (20%). The largest human source of carbon dioxide emissions is from the combustion of fossil fuels. This produces 87% of human carbon dioxide emissions.  is the largest single source of global greenhouse gas emission.

Recent reports of acid rains industrial cities are due to the effect of atmospheric pollution by

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Explanation

 

Emission of nitrogen oxides and sulphur dioxide from power stations, factories and cars causes acid rain, when they react with the tiny droplets of water in clouds to form sulphuric and nitric acids. The rain from these clouds then falls as acid, known as acid rain

Pollution is a change in physical, chemical or biological characters of our land and water that may be

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Explanation

Environmental pollution is defined as the undesirable change in physical, chemical and biological characteristics of our air, land and water. As a result of over-population, rapid industrializations, and other human activities like agriculture and deforestation etc., the earth became loaded with diverse pollutants that were released as by-products. 

It is undesirable and harmful to humans..
The correct option is c..

Which is the greatest air pollutant these days

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Explanation

Vehicles r apprx 20%,

dust is apprx 40% and

INDUSTRIES r apprx 13%

share holder in pollution.

Removal of the soil by the action of wind and water is known as

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Explanation

Top soil is the vital part of the soil and serves as the chief source of nutrition for plants. Loss or disturbance of top soil by natural agents like water, wind, gravity or ice is called soil erosion.

Acid rain occurs due to atmospheric pollution of 

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