Acids weaken some substances. bacteria in your mouth acts on sugar and produces acids. what would be the end result of this chemical reaction between your teeth and the acid produced?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor