Pottery has a mass of 0.61 g and a volume of 0.260 cm3. what is the density?

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

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