Answer:
21%
Explanation:
To remember this percentage, use the amount of land and water on earth, like this: 3 (land) x 7 (water) = 21
(note: oxygen does not change depending on land or water amount)
They are made by the wind. ^-^
water at 273 K will absorb less environmental heat energy than ice at 273 K. Therefore, ice at 273 K is more effective in cooling than water at the same temperature.
