Which natural process explains how mountains gradually wear down over long periods of time?

Which type of cell division produces gametes with half the chromosome number for sexual reproduction?

Which gas is primarily responsible for causing the bends in deep sea divers who ascend too quickly?

Which layer of the atmosphere contains the ozone layer that absorbs harmful ultraviolet radiation?

Which common kitchen substance is used as a natural antacid due to its alkaline properties?

Which vitamin is primarily synthesized in human skin upon sunlight exposure?