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well, the first ice age is when blocks of ice and rocks release oxygen which helps us breathe

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What was first responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphere have today?

The evolution of photosynthetic bacteria and later on, plants, was responsible for changing the formerly poisonous atmosphere to an oxygen-rich one we have today. These organisms released oxygen as a byproduct of photosynthesis, gradually increasing levels of oxygen in the atmosphere.


What was first responsible for changing the formerly poisonous atmosphere to am oxygen-rich atmosphere as we have today?

Early photosynthetic bacteria, such as cyanobacteria, were responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphere through the process of photosynthesis. These organisms released oxygen as a byproduct of converting sunlight into energy, which gradually increased the atmospheric oxygen levels over time.


What was first responsible for changing the formerly poisonous atmosphere to an oxygen-rich atmosphere as we have today?

The first major change in Earth's atmosphere from a poisonous state to an oxygen-rich one was primarily driven by photosynthetic microorganisms, particularly cyanobacteria, around 2.4 billion years ago. These organisms used sunlight to convert carbon dioxide and water into glucose and oxygen through the process of photosynthesis. The oxygen produced began to accumulate in the atmosphere, leading to the Great Oxygenation Event, which drastically altered the planet's environment and allowed for the evolution of aerobic life forms.


How has the atmosphere changed?

Carbon dioxide is increasing in the atmosphere, and oxygen is decreasing.


What must be changed to make Jupiter livable?

Well, for starters, there has to be solid ground, preferably soil. Then, any poisonous gases would have to be removed from Jupiter's atmosphere, and then gases such as oxygen and carbon dioxide would have to be put into the atmosphere, if they are not there already. Plants and animals can then be added.


Cyanobacteria changed the young Earth's atmosphere by producing?

Cyanobacteria changed the young Earth's atmosphere by producing oxygen as a byproduct of photosynthesis. This oxygenation of the atmosphere led to the Great Oxidation Event, which helped shape Earth's atmosphere into one more conducive to supporting complex life forms.


What did some early cells need to to do so the oxygen they produce could replace the poisonous atmosphere of the earth?

photosynthesis


Is mars atmosphere poisonous?

Mars's atmosphere is poisonous. The atmosphere is mainly carbon dioxide which is not poisonous in small amounts, but is harmful in large amounts, like on Mars. Also you would die anyway because there's no oxygen.


Does The combustion of fossil fuels releases oxygen into the atmosphere?

No, the combustion of fossil fuels releases carbon dioxide (CO2) into the atmosphere, not oxygen. Oxygen is consumed during the combustion process to help the fuel burn, but it is not released as a byproduct.


How is energy changed from one type to another?

air is oxygen. the atmosphere is a verityof chemicals: co2, oxygen, helium etc etc


Is marsh gas poisonous?

Marsh gas is mostly methane. While it is not toxic, it can result in asphyxia if too much oxygen is displaced from the atmosphere.


If each planet has thick atmosphere why cant you breath it?

The composition of a planet's atmosphere, including the presence of oxygen, is crucial for human respiration. Depending on the composition, a thick atmosphere might not contain enough oxygen for human survival, making it impossible to breathe. Additionally, other gases or compounds in the atmosphere can be harmful or toxic to humans.