The process by which rocks are broken down into smaller fragments is
called weathering. Through the contact with the atmosphere of the earth and
other factors in the environment like biota and waters, rocks, soil, and
minerals are broken down. Weathering is
classified into 2 important processes--- physical and chemical process. When the
breaking down of the rocks or soil is due to the direct contact with the
condition of the atmosphere like heat, ice, water, and pressure, it is
classified as mechanical or physical weathering process. It is only considered
chemical process when it involves with the direct effect of the atmospheric
chemicals.
