Which of the following agricultural practices have been primarily responsible for pollution of our water resources?
A. 2 and 3
B. 1, 3 and 4
C. 1 and 2
D. 1, 2 and 4
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Cloves, used as a spice, are derived from which of the following plant parts?
A. Seeds
B. Fruits
C. Flower buds
D. Young leaves
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Breeding and management of bees is known as
A. sericulture
B. silviculture
C. pisciculture
D. apiculture
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Black soil is ideal for the cultivation of which of these crops?
A. Sugarcane
B. Wheat
C. Cotton
D. Paddy
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Leghaemoglobin percent in the root nodules of leguminous plants helps in nitrogen fixation by
A. removing oxygen
B. providing oxygen
C. helping in aerobic respiration
D. None of the above
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Nitrogen fixing bacteria is useful in growing which crop?
A. Wheat
B. Paddy
C. Legume
D. Maize
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White tip of maize leaves indicates the deficiency of
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Match the following columns.
Column I (Bacteria) Column II (Function)
a. Nitrobacteria
1. Fixation of atmospheric nitrogen
b. Ammonifying bacteria
2. Formation of NH+ 4
c. Denitrifying bacteria
3. Formation of NO- 3
d. Rhizobium
4. Formation of N2
A. a-3, b-4, c-1, d-2
B. a-1, b-2, c-4, d-3
C. a-3, b-2, c-4, d-1
D. a-4, b-1, c-2, d-3
Select an option to see the answer and solution.
Vegetable oils are converted into solid fat (ghee) by
A. hydrolysis
B. addition of agar
C. oxidation using air and a catalyst
D. hydrogenation
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Which one of the following product is obtained from plant?
A. Hing
B. Shilajit
C. Suhaga
D. None of the above
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What causes 'Blackheart' in potato?
A. Copper deficiency
B. Boron deficiency
C. Oxygen deficiency
D. Potassium deficiency
Select an option to see the answer and solution.
Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A. Leaves
B. Fruits
C. Root
D. Stem bark
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Match
List-I (Source) with
List-II (Medicinal Product) and select the correct answer:
List-I List-II
a. Poppy plant
1. Quinine
b. Bacterium
2. Morphine
c. Cinchona bark
3. Penicillin
d. Fungus
4. Tetracycline
A. a-2, b-4, c-1, d-3
B. a-4, b-2, c-3, d-1
C. a-3, b-1, c-4, d-2
D. a-1, b-4, c-2, d-3
Select an option to see the answer and solution.
The oil which causes dropsy is
A. groundnut oil
B. coconut oil
C. sunflower
D. argemone oil
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The science of producing and using plants for food, fuel, feed, fibre and fertiliser is referred to be as
A. Agronomy
B. Horticulture
C. Pisciculture
D. Apiculture
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Consider the following statements.
A. 1 and 2
B. 2 and 3
C. 1, 2 and 3
D. None of these
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The leaf spot in the brinjal is caused by which of the following mycoplasma like organism?
A. Alternaria
B. Cercospora
C. Erwinia
D. Both A and B
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The branch of agriculture which deals with the feeding, shelter, health and breeding of the domestic animals is called
A. dairy science
B. veterinary science
C. poultry
D. animal husbandry
Select an option to see the answer and solution.
'Cod' is a variety of
A. goat
B. fish
C. crop
D. coral
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The method not used as a biological control is
A. use of predators of a pest
B. pheromone traps
C. use of pesticides
D. use of neem extracts
Select an option to see the answer and solution.
