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The gaseous envelope around the earth is known as atmosphere. The lowest layer of this is extended upto 10 km from sea level, this layer is ______. - Chemistry

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प्रश्न

The gaseous envelope around the earth is known as atmosphere. The lowest layer of this is extended upto 10 km from sea level, this layer is ______.

पर्याय

  • Stratosphere

  • Troposphere

  • Mesosphere

  • Hydrosphere

MCQ
रिकाम्या जागा भरा
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उत्तर

The gaseous envelope around the earth is known as atmosphere. The lowest layer of this is extended upto 10 km from sea level, this layer is troposphere.

Explanation:

Troposphere is correct since the lowest region of atmosphere in which the human beings along with other organisms live is called troposphere. It extends up to the height of approx. 10 km from sea level. 

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Atmospheric Pollution - Tropospheric Pollution - Gaseous Air Pollutants
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 14: Environmental Chemistry - Multiple Choice Questions (Type - I) [पृष्ठ १७७]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 11
पाठ 14 Environmental Chemistry
Multiple Choice Questions (Type - I) | Q 8 | पृष्ठ १७७

संबंधित प्रश्‍न

Carbon monoxide gas is more dangerous than carbon dioxide gas. Why?


List gases which are responsible for greenhouse effect.


Statues and monuments in India are affected by acid rain. How?


What would have happened if the greenhouse gases were totally missing in the earth’s atmosphere? Discuss.


Which of the following gases is not a green house gas?


The acids present in acid rain are:

(i) Peroxyacetylnitrate

(ii) H2CO3 

(iii) HNO3

(iv) H2SO4 


Green house effect leads to global warming. Which substances are responsible for green house effect?


Acid rain is known to contain some acids. Name these acids and where from they come in rain?


Match the terms given in Column I with the compounds given in Column II.

Column I Column II
(i) Acid rain (a) CHCl2 – CHF2
(ii) Photochemical smog (b) CO
(iii) Combination with haemoglobin (c) CO2
(iv) Depletion of ozone layer (d) SO2
  (e) Unsaturated hydrocarbons

Match the pollutant(s) in Column I with the effect(s) in Column II.

Column I Column II
(i) Oxides of sulphur (a) Global warming
(ii) Nitrogen dioxide (b) Damage to kidney
(iii) Carbon dioxide (c) ‘Blue baby’ syndrome
(iv) Nitrate in drinking water (d) Respiratory diseases
(v) Lead (e) Red haze in traffic and congested areas

Match the pollutants given in Column I with their effects given in Column II.

Column I Column II
(i) Phosphate fertilisers in water (a) BOD level of water increases
(ii) Methane in air (b) Acid rain
(iii) Synthetic detergents in water (c) Global warming
(iv) Nitrogen oxides in air (d) Eutrophication

Assertion (A): Green house effect was observed in houses used to grow plants and these are made of green glass.

Reason (R): Green house name has been given because glass houses are made of green glass.


Assertion (A): The pH of acid rain is less than 5.6.

Reason (R): Carbon dioxide present in the atmosphere dissolves in rain water and forms carbonic acid.


Assertion (A): Carbon dioxide is one of the important greenhouse gases.

Reason (R): It is largely produced by respiratory function of animals and plants.


Which of the following is a secondary pollutant?  


The gas released during anaerobic degradation of vegetation may lead to ______.


Thermal power plants can lead to ______.


Higher concentration of which gas in the air can cause stiffness of flower buds?


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