Salinity
salt content of water (C3, M3)
salt content of water (C3, M3)
water that flows through naturally porous or fractured rocks and soils beneath the surface of the land; also, water trapped between dikes (vertical, underground sheets of volcanic rock) or floating on seawater within rocks (C3, R1)
land that comes out of the water, an island (C3)
somewhat salty, but not as salty as ocean water (C2, C3)
a brackish or saltwater pool with no surface connection to the ocean (C3)
a change in an organism or species that enables it to survive in a particular habitat (A3, C3, R3, M2, M3)