What role does the centromere play in cellular reproduction? It is the area where the nucleus is during cell division.
It is the area of alignment for the chromosomes.
It is the area of attachment for chromatids.
It is the area where microtubules are formed.

the answer to your question is b

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: