Air is a mixture of many types of particles, but it is mostly made of nitrogen and oxygen. Air particles are relatively dense close to Earth's surface. If we increase our altitude, we encounter areas of lower air density. The higher we go, the farther apart the air particles are spread out, making it harder for us to get enough oxygen particles into our lungs with every breath.
There is more air in water at the surface because of several things such as the convection current that rotate water when it cools or warms up, algae and other sea creature the photosynthesis produce air on or near the surface.
There are more carbon dioxide in the earth's atmosphere because of fossil fuels.
Oxygen is not found in greater proportion in marine water as compared to atmosphere .
Condensed water vapor near the surface is referred to as precipitation. The condensed water vapor forms clouds and allows the water to return to the surface as rain, ice, sleet, or snow.
A ridge of rock or sand at or near the surface of water is known as a ridge of rock or sand at or near the surface of water
Evaporation
hydrosphere
drops of water form on surfaces near the ground Dew/condensate ; see relevant link .
Before a storm, there is very little dissolved oxygen in the water, so fish rise to the surface for oxygen,which is more plentiful near the surface.
Producers that live at or near the surface release oxygen :3
As water becomes polluted, oxygen levels rapidly drop. Near the surface, where Air and Water are in direct contract water is oxygenated much more easily than in deeper water. In very bad situations fish will begin to "gasp" at the water's surface which looks like they are trying to feed, but in reality they are trying to get oxygen from the air itself.
because the oxygen rises and floats so it will always stay above and think about it if there was oxygen on bottom layers we would be able to breathe and live under water thanks for searching hey call me!!!!!!! seymamam123 Also there is more sunlight in the surface layers, and therefore more plants, as they need the sunlight to photosynthesise. In the process of photosynthesis, carbon dioxide and water combine to form oxygen and carbohyadrates. So basically there is more oxygen in these layers as there is more plants to release oxygen there.
air. Your tank or bowl is low on oxygen. Or if you fed them, flakes.
If you talking about the Japanese fighting fish, they don't have gills so they breath like us with lungs. If not they are probly hungry. just feed them more.
It's because the blue whale is a mammal that lives in the water, and needs the oxygen in the air to breathe.
they can take in oxygen
"It means the concentration of dissolved oxygen available for fish and other aquatic life. When you discharge untreated sewage into a waterway, the bacteria that break it down use up oxygen and there is less available for other aquatic life. Water at the bottom of deep lakes and deep in the ocean is also low in available oxygen. The two sources of oxygen are contact with the atmosphere at the surface, so atmospheric oxygen dissolves in the surface water, and green algae near the surface."
northern latitudes
Oxygen is more electronegative than hydrogen - meaning the electrons they share will spend more time near the oxygen. This causes the oxygen to have a partial negative charge, and the hydrogens to have a partial positive charge - making water polar.
Oxygenated water passes over the gills, which have a rich, near surface blood supply. Gases are exchanged between the blood and the water, which supplies the oxygen the fish needs.