- Calcium oxalate
- Sodium acetate
- Magnesium sulphate
- Calcium
Category: Everyday Science mcqs
- Seven colours
- Five colours
- Three colours
- Non of these
- the strength of T.V. waves is very limited
- picture cannot be transmitted clearly after a specific distance
- the shape of the earth is spherical
- the air is not a good conductor of light and sound/wave s
- Vint Cerf
- Charles Babbage
- Edison
- Alexander Graham Bell
- Optical fiber
- Transistor
- Decoder
- Photo diode
- longest day
- longest night
- smallest day
- none of these
- Three colours
- six colours
- seven colours
- eight colours
- Pomology
- Plriculture
- Sericulture
- Apiculture
- Endobiology
- Exobiology
- Enterobiolo gy
- Neobiology
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