Question

(a) bacterium
(a) fats
PRACTICE TIME
A. MCQs-Choose the correct answers,
5. Cyanobacteria present in the soil fix this gas
1. Malaria is caused by a
into nitrogen compounds.
(b) virus
(a) hydrogen
(b) nitrogen
(c) protozoan
(d) fungus
(c) oxygen
(d) chlorine
2. Pasteurisation of milk destroys
6. Some microorganisms are used in the
(b) vitamins
manufacture of
(c) proteins
(d) bacteria
(a) alcohol
(b) wine
(c) acetic acid (d) all of these
3. Viruses are
(a) eukaryotes
(b) prokaryotes
7. The disease that spreads through air, water, food
Kd) protozoans
or physical contact is
(a) waterborne
(b) bacterial
4. Microorganisms were discovered by
(c) communicable (d) viral
(a) Leeuwenhoek
8. To make milk bacteria-free, it is heated to
(b) Louis Pasteur
(a) 50°C
(b) 70°C
(c) Edward Jenner
(c) 90°C
(d) 100°C
(c) microbes
(d) Robert Hooke
372​

Answer 1

Answer:

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