Second Term Exams Agricultural Science SS 2

AGRICULTURAL SCIENCE – SS2

The turning of dead wood, leaves, animals and roots into the soil for plant nutrient is done by ______. (a) lizard (b) cockroach (c) earthworm (d)flies
Living organisms of the soil are these EXCEPT _______. (a) termites (b)micro organisms (c)air (d)ants
The aggregate particles of soil is the soils ______. (a)water (b)texture (c) profile (d) structure

The arrangement of soil layers as it exists in nature is (a) progression. (b)project. (c) profile. (d) protection.
Clay soil particles are usually lesser than (a)0.002mm (diameter). (b)2.01m (c)0.2m (d)1.02mm.
Soils that break easily when exposed to the heat of the sun are (a)sandy soil. (b)clay soil. (c)loamy soil. (d)dark desert soil.

The soil composition consists of _______. (a)water (b)air (c)organic matter (d)all of the above.
The PH of the soil is simply referred to all of these EXCEPT _____. (a) how acidic (b) how alkanic (c) organic matter (d) air
When there is much hydroxyl ions in the soil. The soil is said to be (a) acidic. (b)fertile. (c) Alkaline. (d) neutral.

45% of the soil is occupied by (a) living organisms. (b) mineral matter. (c)water. (d) air.
One important function of organic matter is that (a)it denutrilizes the soil. (b) binding the other soil particles. (c) leaching. (d) mulching.
Clearing virgin forest for farming will be better with ______. (a) plough (b) bulldozer (c) tractor (d) harvester

To obtain a fertilized egg for incubation (a)hen must be kept separate. (b)cocks must be separate. (c)hens and cocks must be kept in the same pen. (d) hen do not need the cocks to lay their eggs.
For proper incubation of fertilized eggs, the eggs must be in the incubator for __ days. (a)16 (b)17 (c)18 (d)21
Farm survey is all about (a) arranging the buildings in the farm land. (b) mapping out farm land so as to get the area of the land. (c) planning out sectors of the farm land. (d)all of the above.

The breaking up of big soil lumps into smaller soil lumps or parts is ______. (a) ploughing (b) pulverizing (c) harrowing (d) ridging
Which of the following has a far reaching effect on both plants and animals? (a) Moisture and rainfall (b) Temperature (c) Sunlight (d)Soil
The green pigments of plants leaves is called ______. (a)chloropherm (b) chlorophyll (c) chemotherapy (d) chloramphenicol

The unconsolidated weathered earth is ______. (a) weather (b) rock (c) soil (d) parent material.
The reaction of the elements in rock to air, water and carbon dioxide is referred to as ______. (a) physical weathering (b) biological weathering (c) chemical weathering (d) carbonation
Avicides are used to control _____. A. rodents B. birds C. insects D. pests

The mode of action of liquid insecticide is_____. A. contact B. systemic C. stomach D. fumigation
Weevils are _____ insects. A. biting B. chewing C. burrowing D. piercing
The following are pests except. A. rodents B. earthworm C. monkeys D. nematodes

The following are biting chewing insects except _____. A. butterfly B. locust C. grasshopper D. cricket
_____ is responsible for damages in crops. A. weeds B. water C. air D. pests
The following are rodents except _____. ?A. rat B. grasscutter C.squirrel D.monkey

The following are bitting and chewing insect except ____. A. termites B. capsids C.locust D. beetles
Stem burrowers will attack A. cereals B. legumes C. tubers D. spices
Cotton strainers and meleabugs are examples of _____ insects. A. biting B. chewing C. piercing D. burrowing

The following are pathogens except _____. A. viruses B. bacteria C. fungi D. algae
Maize rust is caused by ______. A. bacteria B. fungi C. virus D. nematodes
Rosette disease of groundnut is caused by ____. A. fungus B. virus C. bacteria D. nematodes

Cocoa blackpod disease is caused by ______. A. virus B. bacteria C. fungi D. nematodes
Root knoll of tomato is caused by ______. A. nematode B. fungus C. bacteria D.virus
The following are ornamental trees except _____. A. frangi poni B.balsam C. royal palm D. ixora

Which of the following is not an ornamental shrubs? A. allamenda B.crotons C. hibiscus D.casuarinas
The following are ornamental flowers except ____. A.justicia B. carnalityC. crotalaria D. balsam
The following are legumes except ______. A. centro B. stylo C. calapo D. panicum maximum

______ are cultivated purposedly for feeding animals. A. arable crops B. ornamental crops C. forage crops D. farm trees

THEORY – SECTION II

Agriculture is the main stay of Nigeria’s economy. State clearly ten (10) reasons for this.
State clearly the importance of tractor and bulldozers in agricultural mechanization.
Define the following :

4. Clearly state the important mineral in agriculture.

5 . Loamy soil has international recognition as a friend of farmers. State out the reason.

6. What are insecticides?

7. List the three forms of insecticides and their mode of action

8. What are avicides, rodenticide and nematicides are used to control

9..List five economic importance of crop pests.

10. List two cultural control of pests

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