Well you can mark out a and d.. because cellular respiration uses energy in glucose to make atp
I believe the answer is that the CFCs cause low ozone concentrations in the atmosphere.
Sorry if I'm wrong, hope this helps.
They are called "products".
<span>What ensures that DNA molecule is replicated
exactly as its original strand is with the ability of the DNA to make way and
let the base pairs match with each base. This enables them to form the same
strands so that it is identical and not different with the original strand.</span>