Biogas Production

Q. Biogas is produced by the decomposition of the cow dung by the methanogens present in it.

1. True
2. False

Q. Which of the following is true about biogas production?

1. The solid waste/cow dung used as raw material starts to ferment in the air tight chambers
2. Methanogens in the cow dung are the source of methane and hydrogen gas.
3. Anaerobic bacteria such as Methanobrevibacter and Methanomicrobium are responsible for the production of biogas
4. Biogas production leaves behind solid waste that is dumped into landfills.

Q. Label the different parts and components of a biogas plant.

1. Digester
2. Biogas
3. Waste
4. Sludge

Q. During sewage treatment, biogases are produced which include:

1. methane, hydrogen sulphide, carbondioxide
2. methane, oxygen, hydrogen sulphide
3. hydrogen sulphide, methane, sulphur dioxide
4. hydrogen sulphide, nitrogen, methane

Q. Biogas is produced by the decomposition of cow dung by the methanogens present in it.

1. False
2. True

Q. During the anaerobic digestion of organic waste, such as in producing biogas, which one of the following is not degraded?

1. Hemicellulose
2. Cellulose
3. Lipids
4. Lignin

Q. Biogas is produced by the decomposition of cow dung by the methanogens present in it.

1. False
2. True

Q. State whether true or false.
Spirulina is the major source of biogas production.

1. True
2. False

Q.

What gases are produced in anaerobic sludge digesters?

1. Methane and $C{O}_2$

2. Methane, hydrogen sulphide and $C{O}_2$

3. Methane, hydrogen sulphide and $C{O}_2$

4. Hydrogen sulphide and $C{O}_2$