Question

1. ________ gas puts out burning splinter with pop sound.
a) Oxygen
b) Carbon dioxide
c) Hydrogen
d) None of the above
Other:

2. Fluid friction is also known as________
a) Sliding friction
b) Self adjusting force
c) Rolling fric
d) Drag

3.______ is used in making jewellery.
a) Gold
b) Platinum
c) Both
d) None of the above​

Answer 1

Answer:

1. oxygen

2. drag

3. both

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Answer 2

1. Hydrogen

2 . Sliding friction

3.Both

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