Power Systems
One Kg of natural uranium gives energy equivalent to about

 1000 Kg of coal.
  10500 Kg of coal.
 100 Kg of coal.
 5000 Kg of coal.

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Power Systems
A thermal power station needs space

 less than that required by atomic power station of the same output.
 less than that required by a gas turbine power plant of same output.
 less than that required by the diesel power station of same output.
  less than that required by hydro-power station of same capacity.

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