Match the scenario with the type of weathering in action. mechanical weathering
chemical weathering
biological weathering
The root of a huge tree causes cracks in a rocky surface.
Part of a cliff breaks and falls due to waves.
Acid rain reacts with calcite present in limestone.

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.

links? do you have a link? i don't see anything?

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate

the answer is d. none of the above