If a substance is reduced, it must undergo a: a. gain of electrons.
b. gain of hydrogen.
c. loss of oxygen.
d. gain of oxygen.
e. loss of electrons.

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d