Seven continents are commonly recognized on Earth: Africa, Antarctica, Asia, Europe, North America, South America, and Australia.
This seven-continent model is especially common in English-speaking countries and many school systems. It treats Europe and Asia as separate continents even though they form one continuous landmass, Eurasia, from a geological perspective.
Continental models vary by culture and educational tradition. Some systems combine Europe and Asia into Eurasia, or North and South America into one continent called America. The number seven is therefore a convention based on geography, history, and culture rather than a single universal scientific rule.