Can someone please answer these 2 questions for me ? 1. How many O elements(s) is (are) there in water?

2. How do you know the number of H and O elements in water?

There is two O elements and there is 1 H and two O elements because water is H2O

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh