Available Answers

1. 1.

   Multiple-Choice Questions

   Tick (√) the correct option:

   1. The process of separating useful fractions from petroleum is called
      1. refining
      2. distillation
      3. carbonisation
      4. none of these
   2. The oldest oil refinery in India is located at
      1. Mathura
      2. Digboi
      3. Haldia
      4. Gujarat
   3. ____________ is used for making shoe polishes
      1. Paraffin wax
      2. Petrol
      3. Diesel
      4. Lubricating oil
   4. A household variety of coal is
      1. Peat
      2. Bituminous
      3. Anthracite
      4. Lignite
   5. An ideal and environment-friendly fuel is
      1. Diesel
      2. Coal
      3. Kerosene
      4. Natural gas
   6. Some of the non-renewable resources are:
      1. Coal
      2. Petroleum
      3. Natural gas
      4. All of these
   7. The fuel obtained as by-product during the processing of coal to form coke is known as:
      1. Coal gas
      2. Wood gas
      3. Water gas
      4. Producer gas
   8. Some of the renewable resources are:
      1. Wood
      2. Water
      3. Solar energy
      4. All of these
   9. A dark brown and viscous crude oil with a characteristic foul smell is known as:
      1. Petroleum
      2. Coal
      3. Coal tar
      4. Diesel
   10. The type of coal that contains maximum carbon content is
       1. Peat
       2. Lignite
       3. Bitumen
       4. Anthracite
   11. Which of the following is/are fossil fuel?
       1. Coal
       2. Petroleum
       3. Natural gas
       4. All of these
   12. Natural gas contains mainly
       1. methane
       2. water
       3. oxygen
       4. nitrogen
   13. Useful substances obtained from petroleum and natural gas are called
       1. Refining
       2. Carbonisation
       3. Petrochemicals
       4. All of these
2. 2.

   Fill in the blanks:

   1. A marked rise in global standards of living is directly traceable to widespread use of ________________.
   2. Petroleum or crude oil pumped out from ________________ is not pure.
   3. Destructive distillation of coal produces ________________ and ________________ gas.
   4. Formation of coal is a ________________ process.
   5. ________________ and ________________ are fossil fuels.
3. 3.

   Tick (√) the correct and cross (X) the wrong statement:

   1. Coke and coal are two names for the same substance.
   2. Paper wastage means more forests need to be cut down.
   3. Fossilisation is the process by which the remains of plants and animals are transformed.
   4. Forests are the major storehouse of carbon.
4. 4.

   Match the following:

   Column A	Column B
   1. Tree farm	(a) Reforestation
   2. Coal mining	(b) Infiltration rate
   3. Macropores	(c) Steel
   4. Fossil fuels	(d) Coal
   5. Coke	(e) Trapped energy of incident sunlight
   6. Electricity	(f) Habitat destruction
   7. Fossil	(g) Oil well
   8. Petroleum extraction	(h) Methane

    

5. 5.

   Find the odd one out:

   1. Porosity, density, physical property, carbon content.
   2. Soil erosion, silting, flash flood, reforestation.
   3. Deforestation, felling of trees, forced migration, greenhouse effect.
6. 6.

   Which method of removal of biomass has the most adverse impact on the physical properties of soil?