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Agricultural Science Past Questions | JAMB, WAEC, NECO and Post UTME Past Questions


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Question 11

The sustem in which a farmer uses a piece of land for a period and abandons it for another land is called

Options

A) Crop rotation

B) Mix cropping

C) Shifting cultivation

D) Ley farming

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Question 12

A socio-cultural factor affecting land availability for agriculture include use of land for

Options

A) Constructin road

B) Building houses

C) Building factormies

D) Building religious houses

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Question 13

Organisms which may be benefical to crop include

Options

A) Nematodes

B) Bacteria

C) Viruses

D) Protozoa

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Question 14

Which of the following rocks is sedimantary?

Options

A) Limestone

B) Gabbro

C) Granite

D) Marble

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Question 15

Soil profile important in agriculture because it

Options

A) Determines the soil catena

B) Determines the type of the landtenure system

C) Gives indication of types of cropsto grow

D) Promotes the weathering of rocks

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Question 16

What is the percentage water content of soil sample which weighed 180g when fresh and 120g when oven-dried?

Options

A) 20.14%

B) 25.00%

C) 33.33%

D) 60.00%

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Question 17

A soil sample with a pH of 4.5 is said to be

Options

A) Acidic

B) Alkaline

C) Neutral

D) Fertile

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Question 18

The property of the soil which cannot easily be changed by a farmer is the

Options

A) Porosity

B) Structure

C) Texture

D) Acidity

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Question 19

A farmer continuously applies sulphate of ammonia to his farmland for many years, the resultant soil solution is most likely to

Options

A) Leave blue litmus paper unchanged

B) Change blue litmus paper to red

C) Change red litmus paper to blue

D) Be rich in soil microbes

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Question 20

Application of water to the subsoil through perforated pipes is known as

Options

A) Flooding irrigation

B) Subsurface irrigation

C) Spinkler irrigation

D) Overhead irrigation

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