How would you explain to Dr. Jackie Lewis why the rock in the Great Plains and Rocky Mountains have similar mineral compositions

Need this asap what would be some of the drawbacks of using a specific dramatic structure such as freytag's pyramid?

The image of the observation balloons moving across the sunset is created using -no adjectives -few adjectives -many adjectives

Laugh and be merry, remember, better the world with a song,    better the world with a blow in the teeth of a wrong.    laugh, for the time is brief, a thread the length of a span.    laugh and be proud to belong to the old proud pageant of man. (laugh and be merry/john masefield/public domain) which of these is the main idea of the poem?