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Human beings or machines need ……………. to ...

Human beings or machines need ……………. to do work.

A

energy

B

food

C

petrol

D

fuel

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Set of human being that reside on moon is ………………..

    A
    finite set
    B
    null set
    C
    infinite set
    D
    universal set

  • Human being in ancient times used _____ as clothes,

    A
    `1`. leaves
    B
    `2`. skin of animals
    C
    `3`. metals
    D
    `4`. all of these

  • Human organism is an internal combustion machine because of …………..

    A
    assimilation of energy from food
    B
    liberate `CO_(2)` during respiration
    C
    expel waste food at the end state of digestion
    D
    secrete powerful digestive juices

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