For the chemical formula C6H12 how many
carbons and hydrogens are there?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Several billion years ago which gas was the least prevailant in the atmosphere