Which of the following gases is heavier than oxygen?
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What is the chemical name of chalk?
What is the popular name of Monolithic rock shrines at Mahabalipuram ?
Evaporation of water from leaves of a plant is called
Which of the following is not a function of blood?
Which of the following gases is produced due to incomplete combustion of fuel?
Which of the following elements has the lowest melting point?
SEBI is ___________.