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Question

Roots play insignificant role in absorption of water in :

A
Wheat
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B
Sunflower
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C
Pistia
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D
Pea
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Solution

The correct option is C Pistia
Pistia is an aquatic plant, more specifically a hydrophyte. In hydrophytes, the roots are insignificant since these plants absorb water mostly though their leaves.

Pistia is a genus of aquatic plant in the arum family Araceae. It is a perennial monocotyledon with thick, soft leaves that form a rosette. It floats on the surface of the water, its roots hanging submersed beneath floating leaves. Pistia is a hydrophyte, where absorption of water by roots is insignificant.

Hence, the correct answer is option B.

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