Q71: The Celsius is the scale used to measure ______?
Q72: Blood cells are manufactured/produced by ______ of the body.
Q73: Which one has the longest wavelength?
Q74: Polio vaccine was invented in ______?
Q75: What is the major function of the human lungs?
Q76: Fertilization of the ovum by the sperm usually occurs in the _____?
Q77: ______ is heat from within the Earth that can be converted into electricity.
Q78: Cusec is a unit used to measure the flow of water released from the reservoir. One cusec is equal to ______?
Q79: Deficiency of Vitamin C Causes?
Q80: High up around the earth in its atmosphere, in between twelve to fifty kilometers above the ground, there is a layer called ______?