Look at the values that were calculated in the bottom row of table a. compare the percentage of mass remaining for each sample to determine which factors examined in the lab had an effect on the rate of weathering. document these initial observations in table b.

For the answer to the question above,
 DNA is made up of two nucleotide strands. The nucleotides are connected together by covalent bonds within each strand. The sugar of one nucleotide forms a covalent bond with the phosphate group of another. The two strands themselves are connected by hydrogen bonds. The hydrogen bonds are found between the bases of the two strands of nucleotides. Adenine forms hydrogen bonds with thymine whereas guanine forms hydrogen bonds with cytosine. This is called complementary base pairing