If the mass of a material is 80 grams and the volume of the material is 24 cm3 , what would the desitinty of the material be? provide answer along with units

What causes darkening of the skin as melanin production increases

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?