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Which among the given could be used as fuel in propellant or rockets
Which of the following one of the following is a greenhouse gas
A hot and a cold body are kept in vacuum separated from each other. Which among the given cause decrease in temperature of the hot body?
Decibel is a term attached with
In Fraunhofer diffraction the centre of diffraction image is :
pH of human blood is between
The electric cell is a device to obtain
The tonnage (1 ton, 2 ton, etc.) of an air conditioner (AC) denotes:
Which among the given does not belong to the halogen family?
Which of the following one of the following is a major green house gas
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