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प्रश्न
Explain the Term: Bio-fertilizer
संक्षेप में उत्तर
उत्तर
The micro organisms which when added to the soil increase the fertility of the soil, are termed as Bio-fertilizer.
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संबंधित प्रश्न
List two major harmful effects of the following:
Pesticides such as DDT used in agriculture.
What is the effect of pollution on soil?
Explain the Term: Manure
Give Technical Terms:
A free living nitrogen fixing blue-green algae
Mention any four sources of soil pollution.
Write short notes on soil pollution by:
Pesticides
Soil pollution is largely localised.
Flyash and metallic ash are examples of urban domestic waste.
Chemical fertilisers may reach the rivers but do not harm the fish.
Write the full form of DDT.
