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प्रश्न
Give Technical Terms:
A free living nitrogen fixing blue-green algae
एका वाक्यात उत्तर
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उत्तर
Sunn hemp
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संबंधित प्रश्न
List two major harmful effects of the following:
Pesticides such as DDT used in agriculture.
How is soil pollution caused?
Explain the Term: Manure
Explain the Term: Nitrification
What acts as a storage reservoir for water and other plant nutrients.
A free living bacteria which helps in nitrogen fixation.
Fill in the Blanks:
Chemicals intended to kill insects and other organisms that damage crops called ______.
Mention any two sources of soil pollution.
Write the full form of DDT.
Define the following term:
Sanitary landfills
