NCERT Class 11 Geography Chapter 11 Water in The Atmosphere Solutions to each chapter is provided in the list so that you can easily browse through different chapters NCERT Class 11 Geography Chapter 11 Water in The Atmosphere and select need one. NCERT Class 11 Geography Chapter 11 Water in The Atmosphere Question Answers Download PDF. NCERT Geography Class 11 Solutions.
NCERT Class 11 Geography Chapter 11 Water in The Atmosphere
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. CBSE Class 11 Geography Solutions are part of All Subject Solutions. Here we have given NCERT Class 11 Geography Part I: Fundamentals of Physical Geography, Part II: Indian: Physical Environment, Part III: Practical Work in Geography. NCERT Class 11 Geography Chapter 11 Water in The Atmosphere Notes, NCERT Class 11 Geography Textbook Solutions for All Chapters, You can practice these here.
Water in The Atmosphere
Chapter: 11
GEOGRAPY [ PART – I ]
TEXTUAL QUESTIONS ANSWERS
OBJECTIVE TYPE QUESTIONS
I. Make the correct pairs of the following:
| A | B |
| (i) Conversion of water vapour into visible form | (a) Frost |
| (ii) Dew that is frozen | (b) Condensation |
| (iii) Sending out of heat in rays | (c) Saturated air |
| (iv) The air that contains moisture to its full capacity | (d) Radiation |
| (v) The clouds that are high, white, thin and full of ice crystals | (e) Cirrus clouds |
Ans.
| A | B |
| (i) Conversion of water vapour into visible form | (b) Condensation |
| (ii) Dew that is frozen | (a) Frost |
| (iii) Sending out of heat in rays | (d) Radiation |
| (iv) The air that contains moisture to its full capacity | (c) Saturated air |
| (v) The clouds that are high, white, thin and full of ice crystals | (e) Cirrus clouds |
II. Write F for false statement and T for true statement:
(i) Visibility is greater in a mist than fog.
Ans. True.
(ii) More dew is formed on cloudy nights than on clear nights.
Ans. False.
(iii) Rainfall increases as we go away from equator.
Ans. False.
(iv) Saturated air cannot absorb any more water at a given temperature.
Ans. True.
(v) Dust particles are necessary for the formation of rain.
Ans. True.
III. Multiple Choice Questions:
1. Conversion of water into water vapour is called:
(a) Evaporation.
(b) Condensation.
(d) Dew point.
(d) None of them.
Ans. (a) Evaporation.
2. Conversion of water vapour into visible form is called:
(a) Condensation.
(b) Evaporation.
(c) Fog.
(d) Dew.
Ans. (a) Condensation.
3. Dew that is frozen is called:
(a) Dew point.
(b) Frost.
(c) Sleet.
(d) Hail.
Ans. (b) Frost.
4. Sending out heat in rays is:
(a) Radiation.
(b) Convection.
(c) Conduction.
(d) None of them.
Ans. (a) Radiation.
5. The temperature at which a given sample of air becomes saturated is called:
(a) Dew point.
(b) Condensation.
(c) Mist.
(d) None.
Ans. (a) Dew point.
6. Which one of the following is the most important constituent of the atmosphere for human beings?
(a) Water vapour.
(b) Nitrogen.
(c) Dust particles.
(d) Oxygen.
Ans. (d) Oxygen.
7. Which one of the following porcess is responsible for transforming liquid into vapour?
(a) Condensation.
(b) Transpiration.
(c) Evaporation.
(d) Precipitation.
Ans. (c) Evaporation.
8. The air that contains moisture to its full capacity:
(a) Relative humidity.
(b) Specific humidity.
(c) Absolute humidity.
(d) Saturated air.
Ans. (d) Saturated air.
9. Which one of the following is the highest cloud in the sky?
(a) Cirrus.
(b) Stratus.
(c) Nimbus.
(d) Cumulus.
Ans. (a) Cirrus.
10. Which one of the following is suitable for Koeppen’s “A” type of climate?
(a) High rainfall in all the months.
(b) Mean monthly temperature of the coldest month more than freezing point.
(c) Mean monthly temperature of all the months more than 18°C.
(d) Average temperature for all the months below 10°C.
Ans. (a) High rainfall in all the months.
11. Koeppen’s system of classification of climates can be termed as:
(a) Applied.
(b) Systematic.
(c) Genetic.
(d) Empirical.
Ans. (d) Empirical.
12. Most of the Indian Peninsula will be grouped according to Koeppen’s system under:
(a) “Af”.
(b) “BSh”.
(c) “Cfb”.
(d) “Am”.
Ans. (d) “Am”.
13. Which one of the following years is supposed to have recorded the warmest temperature the world over?
(a) 1990
(b) 1998
(c) 1885
(d) 1950
Ans. (b) 1998.
14. Which one of the following groups of four climates represents humid conditions?
(a) A-B-C-E.
(b) A-C-D-E.
(c) B-C-D-E.
(d) A-C-D-F.
Ans. (b) A-C-D-E.
15. What is the absolute amount of water vapours present in atmosphere called?
(a) Absolute humidity.
(b) Relative humidity.
(c) Condensation.
(d) Fog.
Ans. (a) Absolute humidity
16. At what height are cirrus clouds formed
(a) 8000-12000 metres.
(b) 3000-5000 metres.
(c) 6000-9000 metres.
(d) 4000-7000 metres.
Ans. (a) 8000-12000 metres.
17. At what height are cumulus cloud formed?
(a) 8000-12000 metres.
(b) 3000-5000 metres.
(c) 6000-9000 metres.
(d) 4000-7000 metres.
Ans.(d) 4000-7000 metres.
18. When the saturated air mass comes across a mountain, it is forced to ascend and as it rises, it expands; the temperature falls, and the moisture condensed. It is also known as what?
(a) Relief rain.
(b) Cyclonic rain.
(c) Hailstones.
(d) Rainfall.
Ans.(a) Relief rain.
19. In atmosphere density of water vapou varies. To what per cent does it vary?
(a) 0-4%
(b) 5-10%
(c) 7-12%
(d) 9-15%
Ans.(a) 0-4%.
20. The temperature at which the wate starts evaporating is referred to as:
(a) Dew point.
(b) The latent heat of vapourisation.
(c) High temperature.
(d) Condensation.
Ans. (b) The latent heat of vapourisation.
21. Interior continental areas receive:
(a) Heavy rainfall.
(b) Moderate rainfal.
(c) Low rainfall.
(d) Cyclonic rainfall.
Ans. (b) Moderate rainfall.
