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Biomass and Biogas - Class VIII

Quiz covering biomass energy sources, biogas production, biogas plant types, composition and applications of biogas, and related environmental benefits for Class VIII students.

17 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Biomass can be defined or described as:

  1. petroleum
  2. organic matter which can be converted to fuel
  3. inorganic matter which can be converted to fuel
  4. massive living things
Question 2 Multiple Choice (Single Answer)

Choose the correct statement.

  1. Biomass energy causes no pollution.
  2. Biomass energy causes heavy pollution.
  3. Biomass energy causes less pollution as compared to conventional sources of energy.
  4. Biomass energy is costly.
Question 3 Multiple Choice (Multiple Answers)

Which of the following is a type of biogas plant?

  1. Fixed dome type
  2. Floating gas holder type
  3. Fixed fuel type
  4. Moving chamber type
Question 4 Multiple Choice (Single Answer)

Define biomass.

  1. Fossil fuels are also called biomass.
  2. The wastes and dead parts of living beings are called biomass.
  3. The wastes from industrial applications are called biomass.
  4. The wastes and dead parts of living beings buried deep inside the earth are called biomass.
Question 5 Multiple Choice (Single Answer)

Define slurry.

  1. The mixture of animal dung in water is called slurry.
  2. Dried up material obtained from animal dung is called slurry.
  3. Fresh animal dung is called slurry.
  4. All of the above.
Question 6 Multiple Choice (Single Answer)

Bioenergy is obtained from _________ energy stored in biomass.

  1. chemical
  2. heat
  3. nuclear
  4. thermal
Question 7 Multiple Choice (Single Answer)

What is Biomass?

  1. Organic fuel that is used for treatment of wastes.
  2. Organic fuel that is used as a source of energy.
  3. Organic matter that has a large mass.
  4. Waste products from industries.
Question 8 Multiple Choice (Single Answer)


Gases like ______, _____, ______ and ______ are generated in a biogas plant.

  1. Methane ($CH _4$) , ($CO _2$), Hydrogen ($H _2$) and $H _2S$
  2. Sulphuric acid, ($CO _2$), Hydrogen ($H _2$) and $H _2S$
  3. Methane ($CH _4$), Oxygen, Hydrogen ($H _2$) and $H _2S$
  4. methane ($CH _4$), $CO _2$, Sulphuric acid and $H _2S$
Question 9 Multiple Choice (Single Answer)

Fuel obtained from biomass are:

  1. Charcoal (from wood).
  2. Bio-gas from animal waste (cow-dung etc).
  3. Bio-diesel (from sugar cane and oilseed crops).
  4. All of above
Question 10 Multiple Choice (Single Answer)

Biogas contains _____ % methane.

  1. 75-85%
  2. 50-75%
  3. 80-90%
  4. 35-55%
Question 11 Multiple Choice (Single Answer)
State whether the given statement is True or False :
Cow-dung, crop residue, garbage and sewage are decomposed in the absence of oxygen to produce bio-gas.
  1. True
  2. False
Question 12 Multiple Choice (Single Answer)

Biogas plant is generally made of what?

  1. Bricks
  2. Wood
  3. Tiles
  4. Plaster of Paris
Question 13 Multiple Choice (Single Answer)
Choose the correct statement(s):
(1) Sewage can be used with gobar and agricultural waste to produce bio gas in biogas plant.
(2) The largest composition in biofuel is of methane. 
  1. (1) only
  2. (2) only
  3. Both (1) and (2)
  4. None of the above
Question 14 Multiple Choice (Single Answer)

Which of the following is not an example of a biogas source of  energy?

  1. Wood
  2. Gobar
  3. Nuclear Energy
  4. Coal
Question 15 Multiple Choice (Single Answer)

Which of the following is not a feature of bio energy?

  1. It improves soil quality
  2. It enhances water retention
  3. It reduces carbon dioxide content in the atmosphere
  4. It increases pollution
Question 16 Multiple Choice (Single Answer)

Biogas is a mixture of

  1. $CO + H _2 + CH _4$
  2. $CO _2 + CH _4 + H _2 + H _2 S$
  3. $CO + H _2$
  4. $CO _2 + N _2$
Question 17 Multiple Choice (Single Answer)

The main constituent of bio-gas is

  1. carbon monoxide
  2. hydrogen
  3. methane
  4. carbon dioxide
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