Physics
Gas thermometers are more sensitive than the liquid thermometers because the gases

Are lighter
Have large coefficient of expansion
Have high,specific heat
Have low specific heat

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Physics
An integrated circuit is more advantages than a coventional circuit because

A faulty part of a conventional circuit may be difficult to locate and repair
They make the electric equipments more reliable and easier for servicing
If a part of the integrated circuit fails the entire circuit is simply replaced
All listed here

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Physics
Skating on ice is possible because

The pressure on the ice due to skate melts the ice by lowering its melting point forming a thin film of water
Ice is cold
The pressure on the ice due to skate raises its melting point
The surface of ice is smooth

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