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- Water doesn’t hold much oxygen, so lakes and the oceans are relatively low in oxygen, especially if the water is warm. Oxygen made in the water by growing plants tends to form bubbles that rise and escape to the air above.
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Mar 1, 2021 · One billion years from now, Earth’s atmosphere will contain very little oxygen, making it uninhabitable for complex aerobic life. Today, oxygen makes up around 21 per cent of Earth’s...
Chlorophyll absorbs photons of light and (in conjunction with other proteins) splits water into O2 and H+, which is what produces the O2 in the atmosphere, but the electron flow can also be used to generate ATP, which is the cells basic energy source.
Jun 25, 2024 · We live at the bottom of an invisible ocean called the atmosphere, a layer of gases surrounding our planet. Nitrogen and oxygen account for 99 percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute portions.
Oxygen is produced by photosynthesizing organisms that live in the ocean, in fresh water, and on land. These organisms include bacteria, algae and plants. Photosynthesizing algae in the ocean produce around 70% of oxygen in the atmosphere.
The three major constituents of Earth's atmosphere are nitrogen, oxygen, and argon. Water vapor accounts for roughly 0.25% of the atmosphere by mass.
Aug 19, 2009 · The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen...
May 11, 2023 · Our planet is covered in liquid water and harbors an oxygen-rich atmosphere that has allowed a multitude of plants and animals to evolve — including us. It wasn’t always that way. If you could travel back in time to early Earth, your lungs would choke on an atmosphere devoid of oxygen.
