Indicate the number of each in the following:

a. orbitals in n = 2 principal energy level
b. sublevels in n = 4 principal energy level
c. orbitals in the 5f sublevel
d. orbitals in the 6p sublevel

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