Chapter 13
MCQs
– Man and his Environment
1. ________ are the resources that can be replenished by
physical and biological means.
§ Renewable
§ Non renewable
§ Both
§ None
2. ________ are those resources which once used on exhausted
cannot be reused.
§ Renewable
§ Non-renewable
§ Both
§ None
3. Air, water, soil etc are the examples of ________ resources.
§ Renewable
§ Non-renewable
§ Both
§ None
4. Fossil fuels like coal, oil, natural gas and metals are the
examples of ________ resources.
§ Renewable
§ Non-renewable
§ Both
§ None
5. Air consists of ________% nitrogen
§ 21
§ 56
§ 78
§ 79
6. Air consists of ________% oxygen
§ 21
§ 22
§ 25
§ 89
7. Air consists of ________% carbon dioxide
§ 0.3
§ 0.03
§ 0.003
§ 0.0003
8. Total water resource of the world has been estimated about
________ millions cubic km.
§ 1200
§ 1400
§ 1500
§ 1600
9. Out of total water on earth ________% is ocean water.
§ 90
§ 91
§ 92
§ 93
10. ________% water is present in the earth’s crust.
§ 2
§ 4
§ 5
§ 9
11. ________% water is present in the glaciers and polar
celcaps.
§ 1
§ 2
§ 3
§ 4
12. ________% water is present in fresh water lakes river and
atmosphere.
§ 0.2
§ 0.059
§ 0.052
§ 0.025
13. Rain percolates onto the ground and is called ________
§ Substratum water
§ Level water
§ Ground water
§ All of the above
14. Water that accumulates as the thin film around soil
particles is called ________.
§ Soil water
§ Hydroscopic water
§ Both a and b
§ None
15. The grazing lands or pastures occupy nearly ________% of the
land in the world.
§ 21
§ 22
§ 23
§ 24
16. Solar energy, wind, water, wave, ocean current, tides,
temperature gradients and plant materials are sources of energy.
§ Renewable
§ Non-renewable
§ Both
§ None
17. Coal, petroleum and gas fulfill our daily requirement about
________%
§ 92
§ 93
§ 95
§ 96
18. ________ is derived from the oxidized carbon of plant
tissues.
§ Oil
§ Petroleum
§ Coal
§ Natural gas
19. ________ involves splitting of certain heavy elements into
lighter ones, resulting into the conversion of small mass of the elements into
energy.
§ Nuclear fission
§ Nuclear fusion
§ Condensation
§ None
20. Nuclear fission takes nearly 7 hours to fission 1kg of fuel
releasing ________ KJ energy.
§ 72
§ 75
§ 78
§ 79
21. Heat produced by radioactive by radioactive material deep
beneath the surface of the earth is called ________.
§ Geothermal energy
§ Solar energy
§ Nuclear energy
§ Electrical energy
22. The Earth receives a maximum of ________ watts/sq.metre when
the sun is at the top.
§ 1400
§ 1500
§ 1600
§ 1900
23. Certain kinds of solid waste material such as farm and
animal manure, crop residues and sewage however can be converted into fuel
called ________.
§ Biogas
§ Coal
§ Natural gas
§ Petroleum
24. The wind waves and ocean thermal gradients are ________
sources of solar energy.
§ Direct
§ Indirect
§ Both
§ None
25. Total energy flow due to tides in shallow seas is about
________ billion KW.
§ 1.1
§ 2.2
§ 3.3
§ 4.4
26. The essential condition for generating hydro electric power
is ________.
§ Small volume of water falling great distance
§ Large volume of water falling small distance
§ Both
§ None
27. At present WAPDA is generating ________ megawatt of power in
peak periods of Pakistan.
§ 3900
§ 4100
§ 4300
§ 4500
28. It has been estimated that about ________ electricity
produced is being wasted through the use of inefficient of modern machine.
§ 25
§ 50
§ 75
§ 100
29. In Pakistan the population is increasing at the rate of
________% per annum.
§ 1
§ 2
§ 3
§ 4
30. The world population at present is about ________ billion.
§ 5
§ 6
§ 7
§ 8
31. When the amount of solid waste or concentration of gases
other than oxygen in air is increased is called ________ pollution.
§ Air
§ Noise
§ Water
§ Land
32. ________ includes large number of things such as simple
carbon smoke, road dust etc.
§ Particulate pollutants
§ Smog
§ Simple pollutant
§ All of the above
33. NO2 combine with gaseous hydro carbons to form variety of
secondary pollutants called ________.
§ Photochemical smog
§ Photochemical oxidants
§ Both
§ None
34. CO2 allows the sun rays to pass through but prevents the
long wave radiations reflected by earth. This phenomenon is called ________.
§ Depletion of ozone layer
§ Green house
§ Global warming
§ None
35. The release of chlorine atoms into the atmosphere breaks
down the ozone shield. This phenomenon is called ________.
§ Depletion of ozone layer
§ Green house
§ Global warming
§ None
36. The process of contamination of water is called ________
§ Depletion of ozone layer
§ Green house
§ Water pollution
§ None
37. Radiation, noise pollution are the example of ________
pollution.
§ Air
§ Material
§ Non-material
§ Land
38. Noise levels are measure in ________.
§ Meter
§ Dyne
§ Decibels
§ Kilo watt hour
39. Influenza, aids, chicken pox etc are the example of ________
diseases.
§ Bacterial
§ Fungal
§ Protozoal
§ Nutritional
§ Viral
40. Ring worm, athelete’s foot are the example of ________
diseases.
§ Bacterial
§ Fungal
§ Protozoal
§ Nutritional
§ Viral
41. Malaria, African sleeping sickness are the example of
________ diseases.
§ Bacterial
§ Fungal
§ Protozoal
§ Nutritional
§ Viral
42. Tuberclosis, typhoid, pneumonia and cholera are the example
of ________ diseases.
§ Bacterial
§ Fungal
§ Protozoal
§ Nutritional
§ Viral
43. Scurvy is caused by deficiency of vitamin ________
§ A
§ B
§ C
§ D
44. Cholera is caused by ________.
§ Tinea corporis
§ Vibrio cholera
§ Linea versicolor
§ None
45. Deficiency of vitamin K causes ________.
§ Anemia
§ Prolong bleeding
§ Tooth decay
§ Goiter
46. Deficiency of Vitamin E causes ________.
§ Anemia
§ Prolong bleeding
§ Tooth decay
§ Goiter
47. Deficiency of Iodine causes ________
§ Anemia
§ Prolong bleeding
§ Tooth decay
§ Goiter
48. Deficiency of Floride causes ________
§ Anemia
§ Prolong bleeding
§ Tooth decay
§ Goiter
49. Degeneration of neurons of brain is called ________ disease.
§ Parkinson’s
§ Alzheimer’s
§ Epilepsy
§ All of the above
50. Anemia, prolong bleeding, tooth decay and goites are the
example of ________ diseases.
§ Bacterial
§ Fungal
§ Protozoal
§ Nutritional
§ Viral
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