Water mixed with carbon dioxide from air and changing the properties of limestone is an example of a) chemical weathering b) erosion c) physical weathering d) rock weathering

OPTION A) CHEMICAL WHEATHERING

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.

Answer cumulus clouds;