Ques No.1: At high altitude the air temperature is lower as compare to sea level, therefore water boils at__________temperature.
Ques No.2: Evaporation is a___________process.
Ques No.3: The refrigerator works on the two processes
Ans: Condensation and Evaporation
Ques No.4: Air is a very good_________of heat.
Ques No.5: Which rediation has the lowest frequency in the electromagnetic spectrum?
Ans: Radio Rays
Ques No.6: Which rays are useful in cancer treatment?
Ans: Gamma Rays
Ques No.7: The speed of sound will be maximum if passing through
Ques No.8: The wire used to make the filament of a light bulb is made of
Ques No.9: The wire used to make heating elements in electric kettles and irons are made of
Ques No.10: The fundamental concept of Economics about resources is that the resources are