Question

explain aids in brief

Answer 1

AIDS is a very dangerous disease in which a man or a woman can leave only upto 12 months or hardly 6 months it is very difficult situation when its happens the medicine comes for AIDS and medicine can keep the man or a woman only up to 12 months life when the man will not take this medicine then the men or women can also die within 2 days at the treatment of AIDS is not there in the whole world wide so be careful from AIDS

Answer 2

the substance which have excess of H+ions are known as acids

or

acids are sour in tase. which change the colour of blue litmus to red litmus.
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