The right option is; a. physical and chemical are two types of weathering
Weathering is a process in which rocks, soils, and minerals are broken down into smaller pieces due to certain environmental factors such as extreme weather, biological activity, and agents of erosion such as water and wind. Two major important types of weathering processes are; (i) physical (mechanical) weathering (caused through contact with atmospheric conditions such as ice and heat), and (ii) chemical weathering (influenced by atmospheric chemicals or biologically synthesized chemicals).
