Question

A. Tick () the correct answer.
1. Which of the following categories the viruses fall into?
(a) Plants
O (b) Animals
(c) Microbes o (d) Fungi
2. Which of the following gases is fixed into nitrogenous compounds by blue-green algae present in
the soil?
(a) Hydrogen
(b) Nitrogen
(c) Oxygen
(d) Chlorine
3. Microorganisms are used in the manufacture of
(a) Alcohol
(b) Wine
(c) Vinegar
(d) All of these
4. The disease that spreads through air, water, food or physical contact is called
(a) Waterborne disease
(b) Bacterial disease
(c) Communicable disease
(d) Viral disease
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5. Meat and fish are preserved by using
(a) Alcohol
(c) Sugar
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(b) Salt
(d) Sodium bisulphate
Do




Help me​

Answer 1

Answer:
1 (c) microbes
2 (b) nitrogen
3 (d) all of them
4 (c) communicable diseases
5 (b) salt
Explanation:
1. Microbes are also called microorganisms. All microorganisms such as bacteria, protists, viruses, etc fall into this category.