Question

a substance that helps in preventing the growth of bacteria is -
a) antiseptic b) aseptic
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Answer 1

Answer:

The three sub-atomic particles of an atom are : (A) electron (B) proton (C) neutron. Q 8. Helium atom has an atomic mass of 4 u and two ...

Missing: disadvantages ‎| Must include: disadvantages

Answer 2

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➡Antiseptic