Hopefully not as daft a question as it sounds. Water, as everyone knows, is comprised of Hydrogen and Oxygen (H2O) which are both gaseous at normal room temperature, so why, when they're combined, do...
Fat contains twice as many calories per unit weight as carbohydrates does, so fat is an efficient way for animals, who must move about, to store energy. Compare the way fat and carbohydrates interact...
Earplugs can be rated according to the number of decibels they reduce sound by, and this could be NRR or SNR. I have noticed on websites that earplugs can be used to block loud industrial noise....
