CE BIO 1994 MARKING!

You mean paper 1? Here's the marking:

2 (c) (i) The high temperature is due to the breakdown / decay
of organic wastes -------------------------------------------------------1
by respiration / activities of microorganisms------------------1
which release heat ----------------------------------------------------1

(ii) as fertilizer for plant growth --------------------------------------- 1

(iii) - it causes less pollution to the environment
- it reduces the consumption of fossil fuels /
chemical fertilizers
- the wastes can be recycled into useful matters
e.g. fertilizer, fuel
( any TWO ) 1, 1

(iv) - land in Hong Kong is too expensive / not enough for
building such pit
- it is smelly in a crowded area
- there are problems of collection and transport of wastes
- energy production by this practice cannot meet the
great demand in Hong Kong
and other acceptable suggestions
( any TWO ) 1, 1
Total : 8 marks
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2008-04-17 23:14:24 補充：
Reference: HKCEE 94-BIO-1 Marking Scheme by HKEAA

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