Of solid biodegradable wastes through the implementation of the process of decomposition.

landfills
compost piles
incinerator

The appropriate response is compost piles. It is a heap of substituting layers of plant garbage and soil regularly with an admixture of creature excrement or compound manure masterminded so a to energize the quick change of the constituents into fertilizer.

C) to ensure each new cell has an exact copy of the dna

Dna strands are split apart to allow an opening for replication. the opening has two replication forks so synthesis goes toward them in 5' to 3' direction.