Irregular rock masses formed in the pre-existing cracks & crevices are:__________?
A. Sills
B. Dikes
C. Lacoliths
D. Batholiths
Agriculture MCQs
Immobile nutrient in soil is:_________?
A. P
B. N
C. Mg
D. None of the above
Ammonium sulfate fertilizer containing 21% N & 24% S, is best in top dressing in:_________?
A. Barley
B. Rice
C. Date palm
D. None of these
From the sources of plant nutrients availability in soil, which of the following statements are correct:
A. The plant absorbs carbon as carbondioxides directly from the atmosphere.
B. Water is the source of hydrogen
C. Air & water is the source of oxygen & the chief source of soil nitrogen is organic matter & when organic matter decomposes it gives ammonia.
D. All of the above
Items needed for synthesis of plant food in green leaves are _________ & the process through which it takes place is called photosynthesis:
A. Sunlight
B. Chlorophyll
C. Water & plant nutrients
D. All of the above
Who is known as “the father of Hybrid Rice”?
A. Yaun Longping
B. Yaun Pingpong
C. Zuhee yaun
D. None of these
Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:
A. Acid rain
B. Neutral rain
C. Both A & B
D. None of the above
Moderately toxic compound:_________?
A. Lead
B. Fluorine
C. Nickle
D. All of the above
Soils are also contaminated by a number of inorganic compounds which are also high toxic to human & other animals & are extremely poisonous may include:
A. Arsenic & Cadmium
B. Mercury & chromium
C. Calcium & Magnesium
D. Both A & B
