Which of the following is not associated with human intervention?

Rainfall is not associated with human intervention. Rainfall is a natural process that occurs due to the water cycle in the atmosphere. It involves the evaporation of water from the surface of the earth, which rises into the atmosphere and condenses into clouds. The clouds then release water in the form of rain, which falls back to the surface of the earth. Mining, construction, and urbanization, on the other hand, are all activities that involve human intervention and can have significant impacts on the environment.