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Class 10 Chemistry Environment Chemistry The Atmosphere 4. A group of gases that maintains temperature of atmosphere is:a. carbon dioxide and water vapoursb. nitrogen and carbon dioxidec. oxygen and water vapoursd. nitrogen and oxygen


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4. A group of gases that maintains temperature of atmosphere is:a. carbon dioxide and water vapoursb. nitrogen and carbon dioxidec. oxygen and water vapoursd. nitrogen and oxygen

8. How does acid rain increase the acidity of soil?
8. How does acid rain increase the acidity of soil?

8. How does acid rain increase the acidity of soil?

15. Which gas protects the Earths surface from ultraviolet radiations?a. \mathrm{CO}_{2} b. \mathrm{CO} c. \mathrm{N}_{2} d. \mathrm{O}_{3}
15. Which gas protects the Earths surface from ultraviolet radiations?a.  \mathrm{CO}_{2} b.  \mathrm{CO} c.  \mathrm{N}_{2} d.  \mathrm{O}_{3}

15. Which gas protects the Earths surface from ultraviolet radiations?a. \mathrm{CO}_{2} b. \mathrm{CO} c. \mathrm{N}_{2} d. \mathrm{O}_{3}

9. Point out two serious effects of ozone depletion.
9. Point out two serious effects of ozone depletion.

9. Point out two serious effects of ozone depletion.

Write down the significance of atmospheric gases.
Write down the significance of atmospheric gases.

Write down the significance of atmospheric gases.

10.How is ozone layer formed in stratosphere?
10.How is ozone layer formed in stratosphere?

10.How is ozone layer formed in stratosphere?

5. CO is a hidden enemy explain its action.
5. CO is a hidden enemy explain its action.

5. CO is a hidden enemy explain its action.

14. Global warming causes rising of the sea level. The cause of global warming is:a. \mathrm{CO}_{2} gasb. \mathrm{SO}_{2} gasc. \mathrm{NO}_{\mathrm{x}} gasesd. \mathrm{O}_{3} gas
14. Global warming causes rising of the sea level. The cause of global warming is:a.  \mathrm{CO}_{2}  gasb.  \mathrm{SO}_{2}  gasc.  \mathrm{NO}_{\mathrm{x}}  gasesd.  \mathrm{O}_{3}  gas

14. Global warming causes rising of the sea level. The cause of global warming is:a. \mathrm{CO}_{2} gasb. \mathrm{SO}_{2} gasc. \mathrm{NO}_{\mathrm{x}} gasesd. \mathrm{O}_{3} gas

Where does ozone layer lie in atmosphere? How is it depleting and how can we prevent its depletion?
Where does ozone layer lie in atmosphere? How is it depleting and how can we prevent its depletion?

Where does ozone layer lie in atmosphere? How is it depleting and how can we prevent its depletion?

17. Which one of these pollutants is not found in car exhaust fumes?a. COb. \mathrm{O}_{3} c. \mathrm{NO}_{2} d. \mathrm{SO}_{2}
17. Which one of these pollutants is not found in car exhaust fumes?a. COb.  \mathrm{O}_{3} c.  \mathrm{NO}_{2} d.  \mathrm{SO}_{2}

17. Which one of these pollutants is not found in car exhaust fumes?a. COb. \mathrm{O}_{3} c. \mathrm{NO}_{2} d. \mathrm{SO}_{2}

Define acid rain. How is it formed and what are its effects?
Define acid rain. How is it formed and what are its effects?

Define acid rain. How is it formed and what are its effects?

1. About 99 \% atmospheres mass lies within:a. 30 kilometreb. 35 kilometrec. 15 kilometred. 11 kilometre
1. About  99 \%  atmospheres mass lies within:a. 30 kilometreb. 35 kilometrec. 15 kilometred. 11 kilometre

1. About 99 \% atmospheres mass lies within:a. 30 kilometreb. 35 kilometrec. 15 kilometred. 11 kilometre

What are the characteristics of stratosphere? Why does temperature increase upwards in this sphere?
What are the characteristics of stratosphere? Why does temperature increase upwards in this sphere?

What are the characteristics of stratosphere? Why does temperature increase upwards in this sphere?

12. Iron and steel structures are damaged bya. carbon monoxideb. sulphur dioxidec. methaned. carbon dioxide
12. Iron and steel structures are damaged bya. carbon monoxideb. sulphur dioxidec. methaned. carbon dioxide

12. Iron and steel structures are damaged bya. carbon monoxideb. sulphur dioxidec. methaned. carbon dioxide

5. The Earths atmosphere is getting hotter because ofa. increasing concentration of \mathrm{CO} b. increasing concentration of \mathrm{CO}_{2} c. increasing concentration of \mathrm{O}_{3} d. increasing concentration of \mathrm{SO}_{2}
5. The Earths atmosphere is getting hotter because ofa. increasing concentration of  \mathrm{CO} b. increasing concentration of  \mathrm{CO}_{2} c. increasing concentration of  \mathrm{O}_{3} d. increasing concentration of  \mathrm{SO}_{2}

5. The Earths atmosphere is getting hotter because ofa. increasing concentration of \mathrm{CO} b. increasing concentration of \mathrm{CO}_{2} c. increasing concentration of \mathrm{O}_{3} d. increasing concentration of \mathrm{SO}_{2}

4. A group of gases that maintains temperature of atmosphere is:a. carbon dioxide and water vapoursb. nitrogen and carbon dioxidec. oxygen and water vapoursd. nitrogen and oxygen
4. A group of gases that maintains temperature of atmosphere is:a. carbon dioxide and water vapoursb. nitrogen and carbon dioxidec. oxygen and water vapoursd. nitrogen and oxygen
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4. A group of gases that maintains temperature of atmosphere is:a. carbon dioxide and water vapoursb. nitrogen and carbon dioxidec. oxygen and water vapoursd. nitrogen and oxygen

4. \mathrm{CO}_{2} is responsible for heating up atmosphere how?
4.  \mathrm{CO}_{2}  is responsible for heating up atmosphere how?

4. \mathrm{CO}_{2} is responsible for heating up atmosphere how?

7. Which air pollutant is produced on anaerobic decomposition of organic matter?
7. Which air pollutant is produced on anaerobic decomposition of organic matter?

7. Which air pollutant is produced on anaerobic decomposition of organic matter?

3. State the major sources of \mathrm{CO} and \mathrm{CO}_{2} emission.
3. State the major sources of  \mathrm{CO}  and  \mathrm{CO}_{2}  emission.

3. State the major sources of \mathrm{CO} and \mathrm{CO}_{2} emission.

Oxides of nitrogen cause air pollution. Describe the sources of these compounds.
Oxides of nitrogen cause air pollution. Describe the sources of these compounds.
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Oxides of nitrogen cause air pollution. Describe the sources of these compounds.

6. Which one of the followings is not a Greenhouse Effect?a. increasing atmospheric temperatureb. increasing food chainsc. increasing flood risksd. increasing sea-level
6. Which one of the followings is not a Greenhouse Effect?a. increasing atmospheric temperatureb. increasing food chainsc. increasing flood risksd. increasing sea-level
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6. Which one of the followings is not a Greenhouse Effect?a. increasing atmospheric temperatureb. increasing food chainsc. increasing flood risksd. increasing sea-level

9. Acid rain affects the aquatic life by clogging fish gills because of:a. lead metalb. chromium metalc. mercury metald. aluminium metal
9. Acid rain affects the aquatic life by clogging fish gills because of:a. lead metalb. chromium metalc. mercury metald. aluminium metal
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9. Acid rain affects the aquatic life by clogging fish gills because of:a. lead metalb. chromium metalc. mercury metald. aluminium metal

7. Normally rain water is weakly acidic because ofa. \mathrm{SO}_{3} gasb. \mathrm{CO}_{2} gasc. \mathrm{SO}_{2} gasd. \mathrm{NO}_{2} gas
7. Normally rain water is weakly acidic because ofa.  \mathrm{SO}_{3}  gasb.  \mathrm{CO}_{2}  gasc.  \mathrm{SO}_{2}  gasd.  \mathrm{NO}_{2}  gas
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7. Normally rain water is weakly acidic because ofa. \mathrm{SO}_{3} gasb. \mathrm{CO}_{2} gasc. \mathrm{SO}_{2} gasd. \mathrm{NO}_{2} gas

20. Carbon monoxide is harmful to us because:a. it paralyses the lungsb. it damages lungs tissuesc. it reduces oxygen carrying ability of haemoglobind. it makes the blood coagulate
20. Carbon monoxide is harmful to us because:a. it paralyses the lungsb. it damages lungs tissuesc. it reduces oxygen carrying ability of haemoglobind. it makes the blood coagulate
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20. Carbon monoxide is harmful to us because:a. it paralyses the lungsb. it damages lungs tissuesc. it reduces oxygen carrying ability of haemoglobind. it makes the blood coagulate

16. Effects of ozone depletion are except the following one:a. increases infectious diseasesb. increases crops productionc. can cause skin cancerd. can cause climatic changes
16. Effects of ozone depletion are except the following one:a. increases infectious diseasesb. increases crops productionc. can cause skin cancerd. can cause climatic changes
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16. Effects of ozone depletion are except the following one:a. increases infectious diseasesb. increases crops productionc. can cause skin cancerd. can cause climatic changes

13. Infrared radiations emitted by the Earth are absorbed by:a. \mathrm{CO}_{2} and \mathrm{H}_{2} \mathrm{O} b. \mathrm{N}_{2} and \mathrm{O}_{2} c. \mathrm{CO}_{2} and \mathrm{N}_{2} d. \mathrm{O}_{2} and \mathrm{CO}_{2}
13. Infrared radiations emitted by the Earth are absorbed by:a.  \mathrm{CO}_{2}  and  \mathrm{H}_{2} \mathrm{O} b.  \mathrm{N}_{2}  and  \mathrm{O}_{2} c.  \mathrm{CO}_{2}  and  \mathrm{N}_{2} d.  \mathrm{O}_{2}  and  \mathrm{CO}_{2}
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13. Infrared radiations emitted by the Earth are absorbed by:a. \mathrm{CO}_{2} and \mathrm{H}_{2} \mathrm{O} b. \mathrm{N}_{2} and \mathrm{O}_{2} c. \mathrm{CO}_{2} and \mathrm{N}_{2} d. \mathrm{O}_{2} and \mathrm{CO}_{2}

Give the characteristics of troposphere. Why temperature decreases upwards in this sphere?
Give the characteristics of troposphere. Why temperature decreases upwards in this sphere?
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Give the characteristics of troposphere. Why temperature decreases upwards in this sphere?

3. Just above the Earths surface is:b. stratospherea. mesosphere c. thermosphered. troposphere
3. Just above the Earths surface is:b. stratospherea. mesosphere c. thermosphered. troposphere
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3. Just above the Earths surface is:b. stratospherea. mesosphere c. thermosphered. troposphere

11. Which one of the following is not an air pollutant?a. nitrogenb. carbon monoxidec. nitrogen dioxided. ozone
11. Which one of the following is not an air pollutant?a. nitrogenb. carbon monoxidec. nitrogen dioxided. ozone
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11. Which one of the following is not an air pollutant?a. nitrogenb. carbon monoxidec. nitrogen dioxided. ozone

1. Explain the phenomenon of decreasing temperature in troposphere.
1. Explain the phenomenon of decreasing temperature in troposphere.
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1. Explain the phenomenon of decreasing temperature in troposphere.

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