What would happen to the human population if over a long period of time each couple in a population had only two offspring

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

Witch theory suggests all living things are made up of cell or cells

Coral have a symbiotic relationship with what in order to eat?