EXERCISE
1.
Tick the correct option:
(a) Which of the following needs a force:
(i) pulling a rickshaw
(ii) drawing water from the well
(iii) sewing clothes on sewing machine (iv) all of these
(b)
is the ultimate source of energy on the Earth.
(i) The Sun (ii) The Moon (iii) Stars
(iv) Planets
(C) Burning of coal converts water into steam which is used to generate
in thermal power plants.
(i) electricity (ii) light and heat (iii) muscular energy (iv) none of these
Answers
Answered by
4
Answer:
1 All of these
2 The sun
3 --------
Answered by
0
Answer:
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