Which one of the following is the most characteristic property of an element?
Atomic number is the fundamental properties of an element. Every atom is identified by its unique atomic number. Atomic number is equal to the number of protons present in an atom of the element.
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In most green plants, chloroplasts are
Which of the following is NOT a waste material removed from blood in the kidney?
The absence of law and order
Anarchy is what the absence of law and order i.e, government and freedom of an individual.
India lies in the hemisphere
By volume, 21% of air is _______________.
Birth control pills contain
Which of the following is based on the principle of nuclear fusion?
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