Fewpal
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in Biology by (105k points)

(a) killing of plants in field before they grow
(b) dominating the plants to grow
(c) competing for various resources of crops (plants) causing low availability of nutrients
(d) all of the above.

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Answer is (c) competing for various resources of crops (plants) causing low availability of nutrients 

by (10 points)
Why b can't be the answer.it's also dominates the plant growth

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