All of the following are examples of benefits that people receive by altering the earth’s environmental spheres, except a. the burning of fossil fuels to produce electricity b. the terracing of a hillside c. eutrophication d. the construction of a home

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.

In the developed world, describe the changing role of women in agriculture.

Match the letters with the correct terms