Ajụjụ a bụ: "N'ụwa, enwere efere asaa ma ọ bụ asatọ (dabere n'otú e si kọwaa ha) na ọtụtụ efere pere mpe."? Isiokwu a bụ Plate tectonics.
"Olee akụkụ nke ihe owuwu ụwa e kweere na ọ bụ tectonic plates mejupụtara ya?"