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In which medium sound travels fastest?
a) Solids
b) Liquids
c) Gases
d) Plasma (more…)
How many watts equal one horsepower of work?
a) 726
b) 736
c) 746
d) 756 (more…)
Which instrument is used to measure depth of ocean?
a) Fathometer
b) Anemometer
c) Barometer
d) Hygrometer (more…)
Which instrument is used to measure electrical current?
a) Ammeter
b) Hygrometer
c) Barometer
d) Anemometer (more…)
What is a shooting star called?
a) Meteor
b) rocket
c) space shuttle
d) none of these (more…)
What is the oldest science in the world?
a) Biology
b) Geology
c) Astronomy
d) Physics (more…)
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