Which of the passages from lincoln's gettysburg address uses logic and reason?
a. we have come to dedicate a portion of that field
b. the brave men, living and, dead who struggled here
c. here gave the last full measure of devotion

B.the brave men,living and,dead who struggled here

Explanation:

B. the brave men, living and, deaf who struggled here

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

amber has allowed scientists to study dna that has been preserved over millions of years.