Question

Assertion :Compost is formed after decay of vegetable matter and organic refuse. Reason: Green manure is prepared by ploughing back any green plants into soil.

• A. if both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. if both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. if Assertion is true but Reason is false
• D. if both Assertion and Reason are false

Answer 1

The correct option is B if both Assertion and Reason are true but Reason is not the correct explanation of Assertion

Compost is prepared from farm and town refuge such as vegetable and animal refuse faecal matter of human beings, sewage waste, weeds, crop stubble, straw, rice hulls, forest litter, etc. Composting is a biological process in which microorganisms decompose the organic matter. It takes about 3 to 6 months for decomposition of organic refuse.

Green manure is prepared from young, green crop plants by ploughing them back into soil. Usually young leguminous crops are used for green manuring because they also increase the nitrogen fertility of the soil. The plants are slowly converted into manure through the activity of microorganisms.

So, the correct answer is 'if both Assertion and Reason are true but Reason is not the correct explanation of Assertion'.