What would happen if someone dropped a huge rock into a river

Do you know CLOUDS?☁️ Cumulus — Puffy white clouds that usually mean nice weather. Stratus — Flat, grey clouds that cover the sky like a blanket. Cirrus — Thin, ‘wispy’ clouds high in the sky made of ice crystals. Nimbus — A rain cloud Cumulonimbus — Large storm clouds that can produce thunder, lightning, and heavy rain. Altostratus — Grey or blue-grey middle-level clouds that often cover the whole sky. Altocumulus — Small, fluffy middle-level clouds usually seen in groups or patches. #learnengl

Mammatus Clouds: Stunning Sky Formations After Tornado Threat