Calculate the number of oxygen atoms in 1 mole of O2

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

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