Which sentence most likely explains why the rock has large open pores?
A. Softer parts of the rock melted in sunlight, leaving behind empty holes.
B. Contact with hard pebbles during cooling left dents in the rock.
C. Bubbles formed in the magma when it was still in liquid form.
D. Crystals embedded in the rock fell off due to friction in Earth’s crust.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

can you make it bigger i can't see it