How can two molecules with the same chemical formula react differently?

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

What is the primary goal of human communities?

During convection, less dense fluid rises and denser fluid sinks.