If 5.0 liters of carbon dioxide gas are produced by the reaction below at stp, how many liters of oxygen gas were used in the reaction?
2co (g) + o2 (g) yields 2co2 (g)
10.0 l
7.5 l
5.0 l
2.5 l

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