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Question 19N.3.HL.TZ0.a

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.a
Level HL Paper 3 Time zone TZ0
Command term Suggest Question number a Adapted from N/A
a.
[Maximum mark: 1]
19N.3.HL.TZ0.a

The diagram below represents a small-scale biogas fermenter.

[Source: © Science in Society. http://www.i-sis.org.uk/BiogasChina.php]

Suggest one material that could be loaded into the biogas fermenter from which biogas can be produced.

[1]

Markscheme

blackwater
OR
brownwater/sewage
OR
feces
OR
organic solid waste
OR
paper pulp
OR
other biodegradable material ✔

Do not accept methane and CO2.

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