Agriculture - Mock Test 45

Question 441

The example of amide group nitrogenous fertilizer?

A) Ammonium sulphate B) Urea C) Calcium ammonium Nitrate D) None of the above

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Question 442

The elements play direct role in formation of chlorophyll is?

A) Phosphorus and Potassium B) Calcium and Zinc C) Nitrogen and Magnesium D) Iron and Sulphur

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Question 443

The earth mainly consists of?

A) Four spheres B) Three spheres C) Five spheres D) All of above

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Question 444

The dominant colour of spectral (rainbow) in soil indicates?

A) Kalolinite type of clay mineral B) Hue C) Value D) Chroma

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Question 445

The discovery of oxygen was done by ________, which proved the keystone of other discoveries that went far toward unlocking the mystery of plant life?

A) John Mayow B) John Woodward C) Benjamin Franklin D) Priestly

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Question 446

The direct exchange of ions between the roots and clay colloids called?

A) Soil solution theory B) Contact exchange theory C) Diffusion D) None of the above

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Question 447

The diameter of water molecule is approximately?

A) 2.64A B) 2.54A C) 2.96A D) 1.33A

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Question 448

The mineral gypsum has chemical composition?

A) CaSO4 B) CaSO4.2H2O C) CaSO4.5H2O D) None of the above

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Question 449

The microbes, which can survive at the temperature 25 - 30 ?

A) Thermoduric B) Mesophylic C) Psychrophylic D) Thermophytic

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Question 450

The method of survey adopted for intensive cultivation is?

A) Reconnaissance survey B) Detailed survey C) Detailed and reconnaissance survey D) All of the above

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