1. Particles of rock, minerals, organic matter, and other materials that settle and accumulate at the bottom of bodies of water such as rivers, lakes, and oceans
The aquatic sediment in the riverbed contains fossils from ancient times.
O sedimento aquático no leito do rio contém fósseis de tempos antigos.
2. Deposited material in water bodies that can provide information about geological and environmental history
Scientists studied the aquatic sediment to understand climate changes over centuries.
Os cientistas estudaram o sedimento aquático para compreender as mudanças climáticas ao longo dos séculos.