General agriculture pointer - 110

1. Average of the daily mean temperature of all days in a month is Monthly mean.
2. Wind blowing from south to north is Southerly wind.
3. Direction from which wind comes is Windward side.
4. Direction to which wind goes is Leeward side.
5. Amount of Water vapour present in a unit volume of air is Absolute humidity.
6. Amount of Water vapour present in kilogram of air is Specific humidity.
7. Halo phenomenon is caused by the cloud Cirrostratus.
8. High clouds examples: Cirrus, Cirro-stratus, Cirro-cumulus.
9. Middle clouds examples: Altostratus, Altocumulus.
10. Low clouds examples: Stratocumulus, Nimbus.
11. Okta is a measure of cloud.
12. Both eye reading and self-recording instruments are there in Class A observatory.
13. Condition of atmosphere when temperature falls quickly below zero degree is Frost.
14. Short range forecasting is meant for 1–2 days.
15. Medium range forecasting is meant for 3–10 days.
16. Long range forecasting is meant for >10 days for seasons.
17. The term monsoon was derived from Arabic word “Mausam” meaning Season.
18. Koppen classified the climates into 5 types.
19. Farmers burn waste in the field during night time to avoid Frost.
20. Air temperature, humidity, pressure and wind speed in the upper atmosphere is recorded by Radiosonde.
21. Water balance technique was introduced by Thornthwaite.
22. Plants confined to places of very low Rainfall are Xerophytes.
23. Plants which require more water are Hydrophytes.
24. Kerala’s annual rainfall is 300 cm.
25. Kalavarsha season of Kerala State is June–September.
26. Thulavarsha season of Kerala State is October–November.
27. Upper limit of atmosphere is 750 miles.
28. The oldest meteorological observatory in India is Madras.
29. Ozone depletion is brought about by Chloro Flouro Carbons.
30. Earth’s life giving gaseous envelope is atmosphere.
31. Temperature of –90°C is experienced at Mesopause.
32. The electrically charged layer in the atmosphere is Ionosphere.
33. Energy received outside the atmosphere, on unit area held normal to solar beam is Solar constant.
34. The ratio of reflected radiation to incident radiation is Albedo.
35. The solar constant is estimated to be 1.94 cals/sq.cm/min.
36. The atmosphere is warmed up by heat radiated from the earth’s surface.
37. Distribution of crops in the world is influenced by Climate.
38. The retreating monsoon is also known as North East Monsoon.
39. The outline map of India marked with weather data using international codes and abbreviations is Synoptic map.
40. The concept of Potential evapo-transpiration was first introduced by Thornthwaite.
41. The unit for solar radiation measurement is Langley.
42. Highest rainfall in India is observed at Mawsinram.
43. Father of agrometeorology in India is L.A. Ramdas.
44. Head Office of WMO (World Meteorological Organisation) is Geneva.
45. A journal in meteorology is Mausam.
46. A substance used for artificial rain simulation is AgI/NaCl₂.
47. Pascal is the international standard unit of Pressure.
48. Rice is a short day plant.
49. A plant which closes stomata during day time is Pineapple.
50. The wavelength of visible portion of solar spectrum is 0.39 to 0.7 µm.
51. The absorption of solar spectrum by leaves is very high in Red & Blue bands.
52. The India Meteorological Department (IMD) Headquarters is at Pune.
53. In Kerala artificial rain simulation experiments were conducted at Idukki.
54. Light Intensity influences growth through its effect on Photosynthesis.
55. Density of shelter belt is decided by wind speed.
56. Rainy day is a day with rainfall ≥ 2.5 mm.
57. Crop weather calendar is used for finding crop-weather relationship.
58. Daily mean temperature is calculated by averaging Max & Min temperature.
59. The number of agro-climatic regions in India is 15.
60. A weather abnormality is Tornado/Cyclone/Cold & Hot Wave.
61. Thermometer was invented by Galileo Galilei.
62. A funnel-shaped cloud extending downwards is a characteristic feature of Tornado.
63. Plant life ceases below 40°F.
64. Agromet observations are taken twice daily at 7 & 14 hrs LMT.
65. Crop highly susceptible to frost is Potato.
66. Rainfall is observed in the agromet observatory at 8.30 and 14 IST.
67. Agromet observatories in Agricultural Universities are normally B type.
68. Maximum annual rainfall recorded in Kerala is at Neryamangalam.
69. Heavy wind blows through Palakkad gap during October–November.
70. According to Beaufort’s scale winds are classified into 13 classes.
71. The ancient book “Meteorologica” was compiled by Aristotle.
72. Rain is precipitated from the clouds Nimbus.
73. Occurrence of Mahali disease of arecanut is associated with South West Monsoon.
74. Occurrence of bud rot of coconut is associated with High humidity.
75. WMO day falls on March 23rd.
76. The greenhouse gases are CO₂, N₂O, CH₄ and tropospheric O₃.
77. Increase in CO₂ concentration in atmosphere will lead to increase in earth’s temperature.
78. Increase in CO₂ concentration in atmosphere will lead to higher crop yields.
79. Weather-making layer is troposphere.
80. Systems with lower pressure at the centre are cyclones.
81. Crop growth model tested in India to simulate rice yields is CERES-Rice.
82. The most variable gas in the lower atmosphere is CO₂.
83. Albedo of grass is 20–25%.
84. Recently launched Indian satellite for study on coastal management and marine resources is IRS-P4 (Oceansat).
85. Winds blowing from sub-tropic high to the equatorial low are Trade winds.
86. Winds blowing from sub-tropic high to the equatorial poles are Antitrade winds.
87. Surface temperature of sun is 6000 K.
88. The visible light least important in photosynthesis is Green light.
89. Response of plants to relative length of day and night is Photoperiodism.
90. Short day plants are Rice, Tobacco, Maize.
91. Long day plants are Wheat, Barley, Sugarbeet.
92. Day neutral plants are Tomato, certain varieties of Rice.
93. Photo-insensitive rice varieties are IR-8, Jaya.
94. Jumping legs are found in Grasshopper.
95. Some insect females reproduce young ones directly — this is Vivipary.
96. Krishi Vigyan Kendras are sponsored by ICAR.
97. Panchayati Raj was started in the year 1959.
98. An extension teacher helps farmer to attain desirable changes in his Behaviour.
99. The fundamental objective of extension education is Development of the people.
100. The extension work must be based on The needs and interest of the people.