This document discusses various applications of solar energy including solar distillation, solar ponds, and solar dryers. Solar distillation uses solar energy to convert saline water into distilled water through a simple basin still. Solar ponds store solar heat through stratified layers, with the hottest and most saline layer on bottom storing heat for applications like desalination. Forced convection solar dryers enhance natural drying processes by using solar-heated air to dry agricultural products more quickly and protect against spoilage.