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เคจเฅเคตเคพเคฆ Questions
Which one of the following is not a greenhouse gas?ย
Which one of the following contributes largely to the greenhouse effect?
Find the odd one:
The chief source of naphthalene isย
The electronic configuration of an atom having atomic number 20 isย
When water itself combines chemically with some element or mineral it is calledย
When Hydrogen starts burning in air it produces?
The most reactive among the halogens isย
Of the following which one pollutes the air of abig city?ย
KMN04 can be used as a/an
