Question

it on your thinking cap
Choose the correct options.
ona
a) Which of these is not a source of energy?
ii. sun
in
water
iv. plastic
iii. coal
b) Which of these does not need fuel?
ii. transportation
i. cooking
iv. crystallization
iii. combustion
c) Which of these is a secondary fuel?
ii. leaves
i. biogas
iv. twigs
es from
iii. wood
d) Which of these does not help in starting fire?
ii. heat
i.
water
iv. fuel
of lige
iii. oxygen​

Answer 1

Answer:

a) iv. plastic

b) iv. crystallization

c) i. biogas

d) i. water

Answer 2

Answer:

a) plastic

b) crystallization

c)biogas

d)water