What causes soils and their horizons to differ? a. differences in climates where the soils are formed b. differences in plant and animal life in different locations c. differences in the layout of the land d. all of the above

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier