WASTE MANAGEMENT QUIZ 21

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Question 1:

Pyrolysis is carried out at 500-1,000 degree Celsius and produces component streams. These are

1,2,3

1,3,4

1,2,3,4

2,3,4

During the purification of biogas, silica gel is used to remove

Moisture

Air

Impurities

Carbon dioxide

Which of the following is/are the mechanical process and reduces the particle size of solids/semi-solids?

Only 1

Both 1 and 3

Both 2 and 3

Only 2

What is ecological sanitation?

It involves reuse of human faecal waste/ wastewater

It involves discharge of human faecal waste/ wastewater into rivers

It involves use of freshwater

It involves treatment of saltywater

Improper disposal of solid waste may result in increase in the population of rodents. Which of the following diseases is caused by rodents?

1,2,3

1,2,3,4

2,3,4

1,3,4