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Scientists believe that the process of photosynthesis played a crucial role in providing Earth with an oxygen-rich atmosphere. This process, primarily carried out by cyanobacteria and later by plants, began around 2.4 billion years ago during the Great Oxidation Event. As these organisms converted carbon dioxide and water into glucose and oxygen using sunlight, the accumulation of oxygen in the atmosphere significantly transformed Earth's environment, enabling the evolution of aerobic life forms.
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What is provided to scientists during the process of peer review?
constructive feedback
What process do scientists think provided earth with an oxygen-rich atmosphere?
Scientists believe that stromatolites were responsible for providing an oxygen-rich atmosphere in precambrian times. Stromatolites are structures formed of sediment. The cyanobacteria that formed these structures were photoautotrophs that used sunlight, carbon dioxide and water to produce their food and a byproduct of oxygen.
What is the name of the lower layer of the earth's atmosphere?
Troposphere.Another AnswerThere is another layer that most atmospheric scientists and meteorologists may not agree with, but most biologists would, and that is the biosphere. It is the part of the atmosphere that participates in the respiration process of plants and animals, and it contributes to the earth's atmosphere in a subtle, yet dramatic, way.
What is the process by which scientists grades the work of other scientists before it is published?
This process is called peer review.
When scientists talk about convection in the atmosphere they usually mean?
When scientists talk about convection in the atmosphere, they usually mean the upward movement of air due to differences in temperature and density. This process plays a crucial role in the formation of weather systems and the redistribution of heat in the atmosphere.
Where do scientists believe the gases of the earth's atmosphere came from?
Scientists believe the gases of Earth's atmosphere originated from several sources. Initially, volcanic eruptions released gases such as water vapor, carbon dioxide, and ammonia. Additionally, the process of outgassing from the planet's interior and contributions from comets and meteorites also played a role. Over time, photosynthetic organisms transformed the atmosphere by increasing the levels of oxygen, shaping it into the composition we recognize today.
Explain why scientists might use models represent earths process?
why scientists use models to represent earths process
The process of decay releases carbon dioxide into the atmosphere?
The process of decay releases carbon dioxide into the atmosphere
What is the process by which scientists 'grade' the work of other scientists befor it is published?
yes
What is the process that cleans the atmosphere?
This process is referred to as metalicphis, meaning "purify" in Latin. This is the process used to exterminate the spreading of germs within the atmosphere.
What is the process by which scientist grade the process by which scientists before it is published?
yes
A process used by scientists to find answers to questions or solve a problem?
Is a process used by scientists to find answers to questions or solve a problem
