What are the three codes of ethics that are used by the organisers of the international tourism trade show in berlin to reduce their carbon footprint

Why does physical weathering speed up the processes of chemical weathering? a) physical weathering requires abundant water, as does chemical weathering. b) physical weathering produces fresh surfaces for chemical weathering to attack. c) chemical weathering can occur only on small surfaces, not large ones. d) chemical weathering requires salt, which is provided by salt wedging.

Witch layer of the atmosphere has the most air pressure

Amountain is larger than a hill, with steep sides true or false