Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium.
Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium.
B is the correct answer. The exosphere is the outermost region of the atmosphere the gradually merges out into space. The water cycle does not occur within this region.
