Order the events that occur in dna replication

during dna replication, several proteins facilitate the unwinding of the dna double helix into two single strands. topoisomerases (red) reduce torsional strain caused by the unwinding of the dna double helix; dna helicase (yellow) breaks hydrogen bonds between complementary base-pairs; single-strand binding proteins (ssbs) stabilize the separated strands and prevent them from rejoining.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.