1. A or D
2. D Urbanization
3. <span>D groundwater pollution
4. </span><span>C contamination of beaches and sea vessels with pollutants.</span>
Answer:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Thats one thing ;)
