The correct answer is it is characteristic of both DNA and RNA.
Each nucleotide contains a nitrogen base, a sugar group and a phosphate group.
DNA is made of nitrogen base adenine, thymine, guanine and cytosine,
deoxyribose sugar and a phosphate group.
RNA is made up of adenine, uracil, guanine and cytosine, ribose sugar and a phosphate group.
Answer:
The pH does not decrease drastically because the NaOH reacts with the <u>D) Benzoic acid</u> present in the buffer solution.
Explanation:
The hydroxide ions will react with acidic part of the solutions, it means the benzoic acid, so it will form the conjugate base, the benzoate ion.
-<u><em>Oxygen</em></u>
According to Google these are the percentages of the <em>Earths Atmosphere</em>
<em>1</em> 78% - Nitrogen
<u>2</u> 21% - Oxygen
<em>3</em> 0.9% - Argon
<em>4 </em>0.3 - Carbon Dioxide with very small percentage of other elements.
A B and C are all chemical changes. paper tearing is not.