Heavy water is:
A). Deuterium oxide
B). PH7
C). Rain water
D). Tritium oxide
1. The sensation of weightlessness in a spacecraft in an orbit is due to the
2. The function of ball bearings in a wheel is :
5. The density of the liquid when heated
6. Carbon monoxide has greater affinity for hemoglobin as compare to oxygen
8. In man, expired air contains oxygen about
9. After long periods of use a grey spot develops on the inside of a bulb. This is because
10. Presence of gill slits in the embryo of all vertebrates supports the theory of