Which of the following is based on the principle of nuclear fusion?
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Mass number is always equal to ______.
Arrange the following ina proper sequence.
A. Mutation
B. Reproductive isolation
C. Natural selection
D. Evolution
Which state is in the eastern most state of India
Arunachal Pradesh is the eastern most state of India.
Fats, oils and cholesterol are all types of what?
Which one of the following is a waterborne disease?
Water which is suitable for drinking is called _______________ water.
The electronic dot and cross structure of ethene is ............