Question

PRACTICE TIME
CQs-Choose the correct answers.
5. Cyanobacteria present in the soil fix this gas
Malaria is caused by a
into nitrogen compounds.
(a) bacterium
(b) virus
(a) hydrogen
(b) nitrogen
(c) protozoan (d) fungus
(c) oxygen
(d) chlorine
Pasteurisation of milk destroys
6. Some microorganisms are used in the
a) fats
(b) vitamins
manufacture of
(b) wine
c) proteins
(w) alcohol
(d) bacteria
(d) all of these
(c) acetic acid
'iruses are
a) eukaryotes (b) prokaryotes
7. The disease that spreads through air, water, food
-) microbes
(d) protozoans
or physical contact is
(a) waterborne (b) bacterial
licroorganisms were discovered by
(e) communicable (d) viral
1) Leeuwenhoek
8. To make milk bacteria-free, it is heated to
.) Louis Pasteur
(a) 50°C
(b) 70°C
) Edward Jenner
(c) 90°C
(d) 100°C
Robert Hooke
37​

Answer 1

Answer:

5. Protozoan

6.manufacture of wines

7 viral

8 100 C

Answer 2

Explanation:

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