Primary air polluted is________________?
Primary air polluted is________________?
A. SO2
B. SO3
C. SO4
D. None
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Drip method of irrigation is not suitable to close spaced crops because_________________?
Drip method of irrigation is not suitable to close spaced crops because_________________?A. High water requirements
B. High pump pressure
C. High cost on pipes
D. Unavailable of technologyBreeders seed production is taken up from the nucleus seed B and A lines are pollinated in an isolation of 1 Km in a ratio of_________________?
Breeders seed production is taken up from the nucleus seed B and A lines are pollinated in an isolation of 1 Km in a ratio of_________________?A. 1:2
B. 1:3
C. 1:4
D. 1:5The role of boron and zinc has been recognized in crop_________________?
The role of boron and zinc has been recognized in crop_________________?A. Mustard
B. Sugarcane
C. Rice
D. None of theseHot desert has mean annual temperature of___________________?
Hot desert has mean annual temperature of___________________?A. 50°C
B. 40°C
C. 30°C
D. None of the aboveWhat is catchment____________________?
What is catchment____________________?A. An area which drains in to pond
B. An area of woody plantation
C. Ail area of waterlogged condition
D. None of the abovePercentage of area irrigated by a cusec of water during the season is called_______________?
Percentage of area irrigated by a cusec of water during the season is called_______________?A. Intensity
B. Base period
C. Cusec
D. Irrigation frequency