(a) Name the term used for unwanted plants in a cultivated field and give their one example.
(b) Why do farmers remove them from crop field ?
(c) Mention one control measure by which these can be destroyed.
CBSE Class IX Science SA 2 (3 Marks)
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(a) Weeds. Example – Xanthium
(b) They extract the nutrients from the soil that are meant for the crop plant.
(c) By manual weeding or by applying weedicides.
(b) They extract the nutrients from the soil that are meant for the crop plant.
(c) By manual weeding or by applying weedicides.
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Answer:
"HERE IS YOUR ANSWER"
A) the unwanted plants are called weeds. B)because they are useless plants and they use up the necessary nitrogen which is essential for the crops . C) weedicides and hand-picking .
"HOPE IT WILL HELP YOU"
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