20 ! 11 what happens in a landslide? a. earth materials that are no longer held by friction move down a slope. b. water moves into an area where it does not belong. c. soil washes away into a stream. d. the upper region of a hill becomes built up by rocks.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.