Answer:
That for years scientists have build up and found discoveries that led to recent discoveries brought by previous scientists
Explanation:
Answer:
Briefly ask question please
Answer:
The most vital function of Earth's magnetic field is to deflect most of the solar winds. The solar winds are dangerous level of radiation, that would kills us without our magnetic field.
The correct answer is - cyanobacteria.
The atmospheric oxygen came from the cyanobacteria. These were one of the earliest living organisms on Earth. The cyanobacteria was using photosynthesis in order to create its own food. The photosynthesis process requires sunlight, carbon dioxide, water, and oxygen. The oxygen is mostly released as a waste product from the process of photosynthesis, thus the cyanobacteria were literally releasing oxygen that was ending up into the atmosphere. As more and more cyanobacteria there were across the planet, more and more oxygen they were releasing into the atmosphere, slowly changing the composition of the atmosphere, and setting the basis of it as we know it now.
