Agriculture - Mock Test 51

Question 501

The acidic igneous rocks contain silica?

A) >65% B) <65% C) 60-65% D) None of above

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Question 502

Temperature has got significant effects on?

A) Structure B) Biological activity C) Weathering of rocks and menerals D) All of above

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Question 503

Tarai soils are high in?

A) Iron B) Sodium C) Organic matter D) Calcium

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Question 504

Tarai soils are generally deficient in?

A) Zinc B) Nitrogen C) Phosphorus D) Potash

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Question 505

Symbiotic association of fungal hyphae with plant roots is known as?

A) Mycorrhiza B) Mutual infection C) Lichen D) Co-parasitism

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Question 506

Super-digested compost is called so because?

A) It is prepared by allowing it to decompose beyond the normal process of decomposition B) It contains plant nutrients more than present in ordinary compost C) Super-phosphate is added to the compost during its preparation D) Its P2O5 content is more than that present in the ordinary comp

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Question 507

Sulphate of potash is preferable to MoP for tobacco because?

A) The chlorine in the MoP effect the burning quality of tobacco B) The chlorine in the MoP increases the nicotine content of tobacco C) The application of MoP results in the luxury consumption of potassium D) The sulphate iron helps to increase the availability of other nutrients

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Question 508

Steamed bone-meal contains?

A) 18% P2O5 B) 16% P2O5 C) 22% P2O5 D) 25% P2O5

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Question 509

Standard way of collecting a soil sample is to take?

A) One sample from centre of the field B) One sample each from every corner of the field and mix C) Several samples from all over the field and mix D) None of these

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Question 510

Specific heat of the mineral matter is?

A) 0.462 Cal gm-1 B) 0.18 Cal gm-1 C) 1.0 Cal gm-1 D) 24.0 Cal gm-1

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