A1: Sir J J Thomson.

A2: The femur or the thigh bone.

A3: -40C equals -40F.

A4: Benjamin Franklin.

A5: Nails are not connected with cartilages or blood vessels. While cutting, therefore, the nervous system is not affected.

A6: Sir Frank Whittle of England in 1937.

A7: Ratio of speed of the body to the speed of sound under similar conditions.

A8: Graphology.

A9: When radiation falling on an object is fully absorbed, it appears black.

A10: Sir Frederick Grant Banting & J J R Macleod.

A11: Tantalum, about 6000C.

A12: The gravitational pull in the hills is less than that at plains.

A13: Saturn's seventh, known as Titan (diameter 5680 km).

A14: Bats while flying, emit a set of short squeaks which are ultrasonic waves. These, after reflection from trees and buildings reach the ear of the bats and make them judge, by hearing the echo of the ultrasonic sound, the distance and direction of the obstacle in the air.

A15: Aluminum, 8.13% of the earth's crust by weight.

A16: It is made by salting the roe of sturgeon.

A17: The weight of the iron ball is more than the water it displaces, in case of the ship, it is opposite.

A18: Study of reptiles.

A19: A cluster of fixed stars in the heaven like Great Bear, Orion.

A20: An ant-eating animal.

A21: Opium poppy.

A22: Ronald Ross

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MCS Final Year (Karachi University)