During the fourth generation, 200 dark moths were captured from clean forest B. About how many total moths were recaptured from polluted forest A during the fourth generation?

The answer is 1050

Explanation:

A simple trace on the graph representing the information in the question shows that on graph B (which represents the moths captured per generation from the polluted forest), approximately 1050 moths were captured in the same generation when 200 dark months were captured from the clean forest A.

The above experiment was carried out to determine the extent of Industrial melanism.

Industrial Melanism refers to the artificially induced coloration (mostly dark hues) which affect both plants and animals in some cases stifling their growth or even killing them.

Whereas dark-colored moths were prevalent in the polluted areas after the Industrial Revolution, their numbers declined and more butter-colored moths emerged as pollution reduced.

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you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

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it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.