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NCERT Exemplar Solutions Class 9 Science Solutions for Why Do We Fall ill ? - Exercise in Chapter 13 - Why Do We Fall ill ?
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Vectors can be defined as
(a) animals carry the infecting agents from sick person to another healthy person
(b) microorganisms which cause many diseases
(c) infected person
(d) diseased plants
Answer:
Answer is (a) animals carry the infecting agents from sick person to another healthy person.
Video transcript
"hello everyone welcome to leader
learning
i am gurpreet your science tutor today's
question is
vectors can be defined as
a animals carry the infecting agents
from sick person to another
healthy person b microorganisms which
cause many disease
c infected person or d
diseased plants so out of the four
options we have to find out the
correct one so vectors
are defined as
animals
that carry the infecting agents
agents from sick person
to the another
healthy person
so the correct option will be
option a that is animals which carry the
infecting agents from sick person to the
another healthy person
for more such videos please subscribe
leader learning
and for any doubts drop a comment thank
you"
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