Most of the soil is Sandy and clayey soils are not uncommon. Pebbly and gravelly soils are rare. Kankar (calcareous concretions) beds are present in some regions along the river terraces. The soil is porous because of its loamy (equal proportion of sand and clay) nature
(Answer was from google)
The key difference is that the moon is farther away for the earth during an Annular eclipse.
It's becasue human populations are concentrated in areas that are lacking proper resources.
Global warming which is not a geological process but something humans have caused