What are 2 Geological events that happened during the Hadean eon?

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

What is the approximate chemical composition of the solar nebula?

From the standpoint of geography,a is an internal rendering of an individual's known world