Question

2. These are unwanted plants-
(a) cactus
(b) grass
(c) mangroves
(d) weeds​

Answer 1

Explanation:

ofcourse they are weeds...... we will use weedicides to remove or kill 2eeds in the field......

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Answer 2

Answer:

Solution: Weeds are unwanted wild plants that grow in the field. Weeds compete with the crop for nutrients, light, and space. As a result, crop plants get lesser nutrients, light, and space for their development. ... Tilling uproots the weeds. The best time for the removal of weeds is before they produce flowers and seeds.