<span>They are composed of cells</span>
i think its C pls dont get mad if it is wrong
The sand should both heat and cool faster than the water. This is because water has a higher specific heat ca- pacity than sand – meaning that it takes a lot of heat, or energy, to raise the temperature of water one degree, whereas it takes comparatively little energy to change the temperature of sand by one degree.
The answer to the question is:
Potassium or (K)