What is a good type of erosion or weathering to write about

This would change for every individual because everyone has different difficulties. I would write about abrasion since it is the mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind, glacier, waves, gravity, running water or erosion.

Since a female is both xx chromosome and the male passes down the x chromosome, than the offspring would be female since a female is xx.