Who is the author of “Silent-Spring” – a book which documented the detrimental effects of the indiscriminate use of pesticides(1962).
– Rachel Carson
An angiogram is an X-Ray image of blood vessels after after they are filled with a contrast material (a dye). What material/element enables the vision of arteries?
– Iodine
Professor-Shonku is a scientist character created by ?
– Sathyajit Ray
“Tolkappiyam” is an ancient Tamil text(Sangam age) on what?
– Grammar
Which group of islands came to be known as “Friendly Islands” because of the congenial reception accorded to captain James Cook in 1773 ?
– Tonga