Which statement describes one way that rna differs from dna?
a.) one is a protein, and the other is a nucleic acid.
b.) they contain different five-carbon sugars and a different nitrogenous base.
c.) they are both carbohydrates, but one is a polysaccharide.
d.) one provides energy, and the other carries genetic information.

The best answer is B.

DNA has a nitrogenous base called Thymine but  RNA does not. Instead RNA has Uracil in its structure, thus in DNA, thymine pairs with Adenine but in RNA, Uracil pairs with adenine.

Other differences include :

1. DNA is limited to the nucleus but RNA  can move out to the cell cytoplasm.

2.There is only one type of DNA but 3 types of RNA namely mRNA, tRNA and rRNA.

3. DNA contains the pentose sugar deoxyribose while RNA contains the pentose sugar ribose.

4. DNA is double stranded while RNA is single stranded.

5. DNA stores hereditary information while RNA serves to ferry and translate a copy of this information.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.