(a) Complete the table below by placing each of the following organisms under the appropriate heading: Algae, Bacteria, Dog, Water lettuce, Tadpole, Cat, Lemna, Waterleaf, Mucor, Mushroom
(b)(i) Name four products of decomposition (ii) Mention three roles of decomposers on a refuse dump
(c) List three materials found in a refuse dump which would not be affected by the action of decomposers.
(a)
(b)(i) Products of Decomposition: Hydrogen sulphide;-Carbon(IV) oxide; -Methane; -Ammonia; -Water vapour/water;-Mineral salt/plant nutrients;-Heat/energy;-Humus.
(ii) Roles of Decomposer on Refuse Dump:-They feed on dead/decaying organisms, -They form a link in a food chain; -They form a link between biotic and abiotic factors in ecosystem; materials; -They release inorganic components from organic materials; - they facilitate the recycling of nutrients in the ecosystem; -They reduce the bulky nature of the debris/dump.
(c) Materials in a Refuse Dump that would not be Affected by the Action of Decomposers: -Plastics; -Metals/iron/tin/zinc/aluminium; -Glass/bottle -Nylon/polyethene; -Rubber/tyres,-Stones; Ceramics.
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