i have 4 moles of co₂. how many molecules of co₂ is this?

a) 12 molecules co₂
b) 6.02x10²³ molecules co₂
c) 2.41x10²⁴ molecules co₂
d) 1.20x10²⁴ molecules co₂

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