Is it called sand because its near the sea and the land ?

the word sand is believed to have come from an old English word which itself originated from the ditch word SANT meaning sand this word later became known as something that's finer than gravel but coarser than dirt

this article will :

the of atp are the key to its ability to store and supply energy;

phosphate

the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.