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Q.

Choose the correct statement.

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a

Pollen of Parthenium is used in making pollen tablets.

b

Carrot grass came to India as contaminant with imported wheat.

c

Pollen viability is some extent dependent on the prevailing temperature but not humidity in the atmosphere.

d

Pollen grains of rice have more viability than that of solanaceae members.

answer is B.

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Detailed Solution

Pollen grains of cereals such as rice and wheat have poor viability than dicots like solanaceae members. Parthenium pollen grains cause allergy in man. Pollen viability is not only dependent on prevailing temperature but also humidity. Parthenium or carrot grass came to India as contaminant with imported wheat.

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