Plz why might uranus and neptune have proportionally less elemental hydrogen in their atmosphere than their more massive companions, jupiter and saturn? hint: hydrogen is the lightest element.

they are farther from the sun and most of their atmosphere is nitrogen and methane and the are smaller and have a denser core than both saturn and juipter

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?