using venn diagram, give similarities and difference of two theories (Natural Selection and Artificial Selection)

Based on (MS-LS4-4) standard(grade8) - Mathematical Representations of Natural Selection: Based on  the 'Galapagos Islands Finches - Rainfall Effect' data set(picture attached).This data set shows data about finch populations that was collected at the end of a five year period where there were different amounts of rainfall.   How were the finches affected by drought (rainfall less than 25cm/yr) and excess rainfall (rainfall more than 25 cm/yr)?   Describe at least two changes observed. What do you think caused the changes in the finch population and average beak size during the periods of excess rainfall and periods of drought? Include appropriate scientific vocabulary when possible. What changes in 'beak-depth' genes within the finch population can be correlated to environmental changes?

Explain frequency-dependent selection in your own words.

Genetic variation is the product of completely random events, but acting upon this randomness is a very nonrandom process called natural selection. Explain or give an example.