Discussion

Which of the following represents correct matching set in the context of aquatic plants ?

Adaptation	Purpose
(a) Large circular leaves	(i) helpful in protecting against decay
(b) Waxy coating	(ii) helpful in offering resistance to water currents
(c) Stems have large tunnels and holes	(iii) helpful in providing buoyancy
(d) Ribbon like leaves	(iv) helpful in staying afloat

Answer: A

The correct matching is (a) - (iii), (b) - (i), (c) - (iv), (d) - (ii).

Large circular leaves, like those of the water lily, spread on the surface and help in providing buoyancy.
A waxy coating keeps water off the leaves and protects them against decay.
Stems with large air-filled tunnels and holes help the plant stay afloat.
Narrow ribbon-like leaves bend with the flow and offer little resistance to water currents.

Only option 1 pairs the waxy coating with protection against decay and ribbon-like leaves with water currents.

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