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Question
Weeds not only use nutrients from the soil but are also
a. Harmful for some organisms including human beings.
b. Useful to the crops and harmful for human beings.
c. Harmful to the crops and some animals.
d. Crop specific.
Select the alternative which includes all the correct statements.
Weeds not only use nutrients from the soil but are also
a. Harmful for some organisms including human beings.
b. Useful to the crops and harmful for human beings.
c. Harmful to the crops and some animals.
d. Crop specific.
Select the alternative which includes all the correct statements.
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Solution
The correct option is D a, c and d
Weeds are plants that are unwanted in a given situation and may be harmful, dangerous or economically detrimental. They reduce farm and forest productivity, displace native species and contribute significantly to land and water degradation. Certain groups of weeds are almost always associated with a specific crop. They may harm the soil microorganism and other animals including humans as they contain harmful products and harm the growth of economic plants. Hence, the correct answer is option A.
Weeds are plants that are unwanted in a given situation and may be harmful, dangerous or economically detrimental. They reduce farm and forest productivity, displace native species and contribute significantly to land and water degradation. Certain groups of weeds are almost always associated with a specific crop. They may harm the soil microorganism and other animals including humans as they contain harmful products and harm the growth of economic plants. Hence, the correct answer is option A.
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