The theory of relativity was developed by Albert Einstein. It includes the special theory of relativity and the general theory of relativity. Special relativity addresses the relationship between space and time. General relativity explains gravity as the curvature of spacetime. The theory has been confirmed by numerous experiments and observations
The water cycle includes evaporation, where water turns into vapor. Condensation, where vapor forms clouds. Precipitation, where water falls as rain, snow, or other forms. Collection, where water gathers in rivers, lakes, and oceans. Transpiration, where plants release water vapor into the atmosphere.