Question
What name is given to the number 6.022 × 1023?
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Name the common air pollutant which causes depletion of ozone layer.
Name two planets other than Earth which also have an atmosphere.
What chemical substance is deposited in the secondary wall of sclerenchyma?
Name the quantity whose one of the units is Pascal (Pa).
Mention different aspects of fish culture.
Define green manure. Give one example.
What is another name of tuberculosis?