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CORONA VIRUS ESSAY

Write a essay in Corona Virus. The coronavirus, also known as COVID-19, is a highly contagious virus that first emerged in Wuhan, China in December 2019. It quickly spread to become a glo…

BIOLOGY TOP 10 QUESTIONS

1. What is the Ph value of human blood? A. 7.40 B. 7 C. 0 D. 8 Ans: A 2. The rarest blood group is __. A. O negative B. B negative C. AB positive D. AB negative Ans: D 3. The metal prese…

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