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Question
Which of the following is useful for us?
Which of the following is useful for us?
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Solution
The correct option is B Pheretima
Pheretima (earthworm), also called as 'farmer's friend'. They help to degrade the biodegradable waste present in the soil and change them to compost which improves many soil attributes like structure, water holding capacity, moisture content etc., and also increases nutrient availability.Musca domestica is housefly. It acts as a carrier for several diseases and thus harmful to human health. Periplaneta is cockroach and is also a carrier for various pathogenic diseases.So, the correct answer is option B.
Pheretima (earthworm), also called as 'farmer's friend'. They help to degrade the biodegradable waste present in the soil and change them to compost which improves many soil attributes like structure, water holding capacity, moisture content etc., and also increases nutrient availability.
Musca domestica is housefly. It acts as a carrier for several diseases and thus harmful to human health. Periplaneta is cockroach and is also a carrier for various pathogenic diseases.
So, the correct answer is option B.
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