自し然ぜん現げん象しょう

noun, noun which may take the genitive case particle 'no'

natural phenomenon

Refers to observable events in nature not caused by humans, such as weather, earthquakes, or biological processes. Often used in scientific or explanatory contexts.

• 虹にじは美うつくしい自し然ぜん現げん象しょうだ。

  A rainbow is a beautiful natural phenomenon.

• 地じ震しんは予よ測そくが難むずかしい自し然ぜん現げん象しょうの一ひとつです。

  Earthquakes are one of the natural phenomena that are difficult to predict.