Global heat budget

Why do objects lose their color with depth? The colors other than blue (and green) are absorbed by the water molecules in the first few meters only blue (and green) are reflected Sound is transmitted better Sound is transmitted better in water than it is in air Sound velocity in the ocean is about 1500 m/s, or about 4 times its speed in air Sound velocity increases with pressure and temperature

37p thachthaoxanh 24-08-2011 56 5   Download