Question

• Which of these is needed to measure the mass of a
rock?
be
a. A beam balance
b. A barometer
c. A metric ruler
d. Thermometer​

Answer 1

Answer:

ans is option 3 means c)

Hope it will help you.....

Answer 2

Answer:

a beam balance

Explanation:

thermometer is used to measure temperature

metric ruler is used to measure length

barometer is used to measure atmospheric pressure

beam balance is used to measure mass

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