Question

C) There is a lot of concern over the use of mercury as a thermometric liquid as
i, mercury has a uniform rate of expansion,
ii. mercury has a high boiling point.
iii. mercury is an opaque and shiny substance,
iv. mercury is a poisonous substance.​

Answer 1

Explanation:

There is a lot of concern over the use of mercury as a thermometric liquid as

mercury is a poisonous substance.

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Answer 2

Explanation:

I think ur answer is (2) .

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