Class VIII

Refining is
  1. Extracting petroleum gas
  2. Separation of various fractions of petroleum
  3. Heating of coal
  4. Sedimentation of fossil fuel
Vaseline is made from ? 
  1. Paraffin wax 
  2. Diesel 
  3. Kerosene 
  4. Petrol 
The layer containing petroleum oil & gas is
  1. Above that of water
  2. Below water
  3. Between water and sand
  4. Below sand
Other uses of fuel includes
  1. Produce steam to run engine
  2. Produce electricity in thermal power plants
  3. Fuel in various industries
  4. All of these
Petroleum and coal are .
  1. Gases
  2. Metals
  3. Energy
  4. Fossil fuels
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