Pls pls lpsl i will give

X is the answer my friend

Explanation:

Explanation: W.) nucleus

                       x.)chromosome

                        y.)chromoplast

                         z.)cell wall

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this