Which of the following is a renewable source of energy?
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To which habitat is the turtle Petri adapted?
Sitara Devi is associated with ________________.
Winds blowing constantly in one direction in rocky deserts form
____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.
An unbalanced chemical equation is called a
What is dry ice?
Methane an air pollutant is produced ______.