- Which gland of an oyster helps in the production of pearls?
Answer: Nacre gland - Who was Tansen?
Answer: A famous musician in the court of Akbar - Who received the Nobel Prize for the discovery of DDT?
Answer: Dr. Müller - Which quantity remains unchanged during the refraction of light?
Answer: Frequency - Who is the author of the book Satyarth Prakash?
Answer: Swami Dayanand Saraswati - Which alkaloid is present in the roots of the Sarpagandha plant?
Answer: Reserpine - Which state of India has the largest forest area?
Answer: Madhya Pradesh - Which instrument is used to measure the speed of wind?
Answer: Anemometer - Why was Jamini Roy famous?
Answer: As a painter - Which device is used to convert AC current into DC current?
Answer: Rectifier
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