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Agronomy
The soil are contains _______?
More carbon dioxide as compared to atmosphere
Less oxygen as compared 10 atmosphere
Both A and B
None of these
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Agronomy
When the course of water is blocked at some places if is called _______?
Dam
Lake
River
Head works
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Agronomy
Lac is produced by insect _______?
Apis dorsata
Laceifera lacca
Bombyx mori
Apis cerana
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Agronomy
Critical factors for crop production is _______?
Water
Land
Pure seed
fertilizer
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Agronomy
Allelocliemicals may enter in the soil through the process of _______?
Mass flow
Diffusion
Root exudation
None of these
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Agronomy
The process of periodic shedding of hard secretion cuticle which occurs during developmental stages of insects is called_______?
Exuvium
Ecdysis
Moulting
Moulting and Ecdysis
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Agronomy
Organisms which feeds on dead and decaying organisms are called as _______?
Saprophytes
Xerophytes
Halophytes
All the above
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Agronomy
The control and preservation of natural resources for present and future use is called _______?
Crop residue management
Conservation
Sustainability
None of these
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Agronomy
Green vegetables are the source of _______?
Carbohydrates
Biotin
Folate
Vitamin
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Agronomy
Highly decomposed stage of organic matter is called_______?
Organic acid
Cellulose
Humus
All the above
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