pls answer both the question I have exams
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Albert Einstein is best known for his equation E = mc2, which states that energy and mass (matter) are the same thing, just in different forms. He is also known for his discovery of the photoelectric effect, for which he won the Nobel Prize for Physics in 1921
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2.Personal hygiene and regular exercise are very much essential as :
1. It make is healthier.
2. Sweat releases toxins from our body.
3.Maintaining hygiene reduces the chance of being ill.
3.1. Adrenal glands produce the adrenaline hormone which adjusts the stress and anger in our body.
3.2.The first menstrual flow begins at puberty is termed as menarche.
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