What is the primary reason for the asymmetrical distribution of continents and oceans across the Earth’s surface?

Correct option is A

The correct answer is (a) Seafloor spreading and plate tectonics.
• The unequal distribution of continents and oceans is due to plate tectonic movements and continental drift over millions of years.
• These processes constantly reshape Earth’s surface through seafloor spreading, subduction, and collision zones.
Information Booster:
• The theory of Plate Tectonics was proposed by McKenzie and Parker (1967).
• Continental Drift Theory was introduced by Alfred Wegener (1912).
• Continents move due to convection currents in the mantle.
• The present configuration evolved from the supercontinent Pangaea.
• Seafloor spreading occurs at mid-ocean ridges like the Mid-Atlantic Ridge.
Additional Knowledge:
• Earth’s lithosphere is divided into 7 major and 8 minor plates.
• Tectonic activities cause earthquakes, volcanoes, and mountain formation.
• Oceanic crust is younger and denser than continental crust.
• Major plates: Pacific, Eurasian, Indo-Australian, African, Antarctic, North & South American.