Smog is a combination of
1). Air and water vapours
2). Water and smoke
3). Fire and water
4). smoke and fog
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1. When hot liquid is poured into a thick glass tumbler, it cracks because glass :
2. During ________ motion of an object along a straight line, the velocity remains constant with time.
3. Magnetism in materials is due to
5. Light beam which is highly directional is called:
6. The most penetrating radiation out of?the following is
7. Heat from the sun reaches earth by the process of
9. Instrument used to measure the force and velocity of the wind is
10. The information of brilliant colors in a thin soap film is a consequence of the phenomena of