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 Yuan Longping was a Chinese agronomist, member of the Chinese Academy of Engineering, known for developing the first hybrid rice varieties in the 1970s, part of the Green Revolution in agriculture. For his contributions, Yuan is known as the “Father of Hybrid … Read more
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