Im stoopid which definition best describes global warming? a long-term change in the earth's climate a long-term increase in the earth's average temperature a long-term change in the climate of a region or a city solar heat that is radiated out into space

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.

Write a 150-word essay describing the effect of people's activities on the environment in the region.

Look at the photo i can’t do geography