Biology GK Questions Quiz-71

1401.Which of the following is used as anaesthetics? (1) N2  (2) N2O (3) CH4  (4) CO2 Answer: 1401.(2) Nitrous oxide (N2O) is a colorless, odorless gas that is used as an anesthetic and analgesic. It is used in surgery and dentistry for its anaesthetic and analgesic effects. It is known as “laughing gas” due to the euphoric effects of inhaling it, a property that has led to its recreational use as a dissociative anaesthetic. 1402.Clove is obtained from (1) Root  (2) Stem (3) Leaves  (4) Flower buds Answer: 1402.(4) Cloves are obtained from the aromatic flower buds of a tree in the family Myrtaceae, Syzygium aromaticum. Cloves ate the dried unopened flower buds and calyx tubes, harvested before the flowers have opened, of the clove tree. Cloves are collected when the flower bud is not yet open. 1403.Which of the following is the treatment of water pollution? (1) Bag house filter (2) Windrow composting (3) Venturi scrubber (4) Reverse Osmosis Answer: 1403.(4) Reverse osmosis (RO) is a water purification te…