Question

what are weeds? how do they affect crop production?
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Answer 1

Answer:

Weeds are the unwanted plants which grow in between the crops. They need to be removed because they affect the crop production. They make use of all the nutrients required for the crop for being healthy. The competition for nutrients increases and there are chances of crop failure.

Invasive species, including weeds, animal pests and diseases, represent the biggest threat to our biodiversity after habitat loss. Weed invasions change the natural diversity and balance of ecological communities.

Three ways to remove weeds from a crop field:

By hand. Walking the field and pulling out the weeds.

By mechanical means. Pulling iron through the field that will till up the space between the crop rows and cut/kill the weeds.

By chemical means. Using a herbicide to kill the weeds.

Explanation:

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Answer 2

Answer:

weeds are the undesirable or unwanted plants grown between the crops.

the process of removing unwanted plants on weed is called wedding.

weed are some unwanted plant which grow along the crop they are undesirable, and they compete with crop plant for sunlight, nutrients water, air and space.

they affect the growth of the crop which result in poor crop yield.

show the removal of weed is necessary for growing healthy and high yielding crop