<span>B is the correct answer. The beginning of DNA replication occurs with the unwinding of the DNA helix by a special enzyme. The two strands that form the helix then create a replication fork. The two strands are then oriented differently, one becoming the 'leading strand' and one the 'lagging strand'. </span>
Answer:
The three elements that make up over 99 percent of organic molecules are carbon, hydrogen and oxygen.
Explanation:
It is soil after wind for example wind storm causes to soil erosion
-Melting Icebergs, glaciers, and ice sheets
-sea level rise
-wildfire
