Ques No.1: The temperature of the water below the solid ice layer is _________.
Ans: 4 degree centigrade
Ques No.2: The temperature of the dead body is the _________.
Ans: temperature of the place where it is kept
Ques No.3: Water is a universal solvent for __________.
Ans: Biochemical Reactions
Ques No.4: The German or nickel silver is composed of approximately __________.
Ans: 60% copper, 20% nickel and 20% zinc
Ques No.5: As the temperature of ice rises, ___________.
Ans: the ice melts and its density increases
Ques No.6: ______ is a unit of distance.
Ques No.7: In blood, the percentage of water is ______.
Ques No.8: The principle used in radar is the same as that of sonar. In radar we use radio waves; whereas in sonar we use ________.
Ques No.9: _________ is made by heating wood.
Ques No.10: When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because light is __________.