Classify amoeba to species level

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

In which situations is the principle of cross-cutting relationship useful in determining relative age?

How do you date a sample of rock that you suspect as being one of the earliest on earth