Readers ask: Which Biological Process Is The Main Source Of Atmospheric Oxygen?

Photosynthesis is the main source of atmospheric oxygen, which produces sugars and oxygen from carbon dioxide and water: An additional source of atmospheric oxygen comes from photolysis whereby high energy ultraviolet radiation breaks down atmospheric water and nitrous oxide into component atoms.

What is the main source of oxygen in the atmosphere?

At least half of Earth’s oxygen comes from the ocean. Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean. The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize.

Which biological process is the main source of atmospheric oxygen group of answer choices?

In the process of photosynthesis, phytoplankton release oxygen into the water. Half of the world’s oxygen is produced via phytoplankton photosynthesis. The other half is produced via photosynthesis on land by trees, shrubs, grasses, and other plants.

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What biological process is the source of the oxygen?

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.

What biological process releases oxygen into the atmosphere?

The process of photosynthesis in plants releases oxygen into the atmosphere. Respiration by plants and animals, as they use the energy stored in food, and the process of decomposition of dead organisms, releases carbon dioxide into the atmosphere.

What is the source of the oxygen in Earth’s atmosphere quizlet?

Photosynthesis is the major source of oxygen in Earth’s atmosphere.

What is the source of atmospheric oxygen released during photosynthesis?

The oxygen released during photosynthesis is from the water. The plants will absorb water as well as carbon dioxide during photosynthesis. Later these water molecules are converted into oxygen and sugar. The oxygen is then released into the atmosphere whereas the sugar molecules are stored for energy.

How did oxygen O2 get into Earth’s atmosphere?

How did molecular oxygen (O2) get into Earth’s atmosphere? It was released by life through the process of photosynthesis. It regulates the carbon dioxide concentration of our atmosphere, keeping temperatures moderate.

What is produced from oxygen through various atmospheric processes?

Answer: Your answer is OZONE. Explanation: The presence of atmospheric oxygen has led to the formation of ozone (O3) and the ozone layer within the stratosphere: O + O2:- O.

Which process gives off oxygen into the air?

Plants – Plants create the majority of the oxygen we breathe through a process called photosynthesis. In this process plants use carbon dioxide, sunlight, and water to create energy. In the process they also create oxygen which they release into the air.

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Is photosynthesis is the only biological process that releases oxygen into the air?

Photosynthesis is the biological process where cells containing chlorophyll in presence of sunlight using carbon dioxide and water produce glucose and oxygen gas is released into the atmosphere.

Which process helps in increasing oxygen in air?

Explanation: During the process of photosynthesis, hydrogen is combined with carbon atoms to produce oxygen which is then released into the atmosphere.

What is the oxygen cycle process?

In the biosphere, the major oxygen cycles are photosynthesis and respiration. In these two processes of the oxygen cycle, it is interconnected with the carbon cycle and the water cycle. They take in carbon dioxide and give out oxygen. Plants are estimated to replace about 99% of all the oxygen used.

What are the sources of oxygen in the atmosphere Class 9?

Oxygen is continuously replenished in the atmosphere by photosynthesis. Around half of the oxygen is produced by phytoplankton and the rest by other green plants. Living organisms including plants utilise oxygen to generate energy by cellular respiration and release carbon dioxide.

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