The percentage change of a number when it is first decreased by 10% and then increased by 10% is
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National Anthem of Bangladesh 'Amar Sonar Bangla' was written by
Features and habits that help animals to adapt to their surroundings are a result of the process of ______________.
The strongest interactions between molecules of hydrogen chloride are
According to Dalton’s Atomic Theory, the smallest indivisible particles of matter is called ______.
What is the name of a group of similar cells performing a specific function?
The virus of AIDS affects the growth of_____________
Ferns belong to which division of plants?