Class VII

Fossils fuels are important sources of energy in
  1. transport
  2. homes
  3. industries
  4. all of them
Element which is non-metal and is found on right side of periodic table is
  1. argon
  2. sodium
  3. both a and b
  4. neon
Living things are source of
  1. fossil fuel
  2. bio mass
  3. both a and b
  4. solar energy
Hot water or steams carrying geothermal energy often comes up to surface in countries
  1. New Zealand
  2. Ice land
  3. both a and b
  4. Pakistan
Toxic air pollutants like Sulphur dioxide and nitrogen oxides are produced by burning
  1. coal
  2. oil
  3. both a and b
  4. gases
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