Induced breeding technique is used in
Marine fishery
Capture fishery
Culture fishery
Inland fishery
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Isinglass is employed in |
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pH of vermiculture is kept at |
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Pisciculture is rearing and production of |
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Smooking is used as a technique of |
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Which one is bottom dweller? |
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Norman Borlaug the 'Father of Green Revolution' has developed a highly recognized and appreciated cultivating variety of ______. |
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Which one of the following helps in absorption of phosphorus from soil by plants? |
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A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this? (a) Lots of urea and phosphate fertilizer were used in the crops in the vicinity (b) The area was sprayed with DDT by an aircraft (c) The lake water turned green and stinky (d) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis. Which two of the above were the main causes of fish mortality in the lake? |
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Selection of homozygous plant is |
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Necrosis, or death of tissue particularly leaf tissue, is due to the deficiency of |
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