"clouds are collections of enemous numbers of tiny water droplest or ice crystal in the air. the droplest are so small that fall very slowly through the atmosphere and are easily kept a loft by air movements.(air movement also change the shaoe of d move them ache sky).after periode of time, the droplest grow too large to stay a loft, and they fall to earth as rain, hail or snow.what is the main idea of paraghraph?"