MCQs

Agriculture MCQs with Explanations

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2291AgricultureMedium

The aggregation of individual particles is called________?

ATexture

BFlocculation

CGranulation

DStructure

Correct answer

B. Flocculation

Explanation

The correct answer is Flocculation.

2292AgricultureMedium

Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

AMulch

BMuck

CMull

DMycorrhizae

Correct answer

A. Mulch

Explanation

The correct answer is Mulch.

2293AgricultureMedium

Humus generally refers to the decomposed organic residues which have undergone a series of degradation and synthesis cycles. The humic substances consist of a series of highly acidic, yellow to black coloured, high molecular weight compounds ________, which can be separated using different extraction procedures:

AHymatomelanic acid & Humin

BHumic acid & Fulvic acid

CNone of these

Dboth A & B

Correct answer

D. both A & B

Explanation

The correct answer is both A & B.

2294AgricultureMedium

One of the following insect act as a vector for CLCV________?

AJassid

BHeliothus

CWhite fly

DAplud

Correct answer

C. White fly

Explanation

The correct answer is White fly.

2295AgricultureMedium

Animal of same species having same size, shape, color are called________?

ABreed

BGroup

CStrayn

DVariety

Correct answer

A. Breed

Explanation

The correct answer is Breed.

2296AgricultureMedium

What does NARC stand for?

ANational Academy of Resource Conservation

BNational Alliance for Rural Communities

CNational Agricultural Research Centre

DNational Association of Research Centers

Correct answer

C. National Agricultural Research Centre

Explanation

National Agricultural Research Centre (NARC), Islamabad established in 1984, is the premier research establishment of the Pakistan Agricultural Research Council (PARC) at the federal level.

2297AgricultureMedium

Organic evolution through large discontinuous variations was propound by________?

AMendel

BHuge and Vnes

CDarwin

DLamak

Correct answer

B. Huge and Vnes

Explanation

The correct answer is Huge and Vnes.

2298AgricultureMedium

The unique soil environment under the influence of plants roots is called rhizosphere and this term was given by________?

AA.Q khan

BAristotle et al.

CHelium. S. Denial

DHiltner

Correct answer

D. Hiltner

Explanation

The correct answer is Hiltner.

2299AgricultureMedium

When red tall plant is crossed with dwarf white plant all the plants of F, are found to be tall red. which of the following ratio will be available when a test cross is made________?

A3:1

B1:2:1

C1:2:3

D1:1:1:1

Correct answer

D. 1:1:1:1

Explanation

The correct answer is 1:1:1:1.

2300AgricultureMedium

The net reaction of photosynthesis is________?

A((CH2O) + O2 CO2 + H2O)

BNone of the above

CCO2 + H2O light O2 + (CH3O)

DCaCO3 + 2HCl CaCl2 H2O+CO3

Correct answer

C. CO2 + H2O light O2 + (CH3O)

Explanation

The correct answer is CO2 + H2O light O2 + (CH3O).

What does NARC stand for?

ANational Academy of Resource Conservation

BNational Alliance for Rural Communities

CNational Agricultural Research Centre

DNational Association of Research Centers

Correct answer

C. National Agricultural Research Centre

Explanation

National Agricultural Research Centre (NARC), Islamabad established in 1984, is the premier research establishment of the Pakistan Agricultural Research Council (PARC) at the federal level.