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.
Answer:The quality or state of being volcanic; volcanic activity. ... The level of power of a volcano.
Explanation:
Answer:
false
Explanation:
if its not that then its true :)
Answer:
It is accepted by a few scientists.
Answer btw I am new can be friend
Answer:
True, members of the Wampanoag tribe helped the colonists survive.
Explanation:
When the colonists first arrived in what is now Massachusets, they didn't really know what they're facing and were simply not aware of the conditions in the area and how to survive long term. This was a big problem because the reason why they moved there was because of searching for new opportunities and by not surviving this wouldn't have happened, while the government had its goal on long term settlements through which it will increase its influence in the region.
The reason why the colonists, referred to as Pilgrims, survived were the members of the native Americans, namely the Wampanoag. The Wampanoag were friendly and they explained to the colonists what they can expect climate-wise, thought them about the characteristics of the land, introduced them to local crops and how to grow them so that they can feed themselves. This led to good and friendly relations between the two groups and the colonists survived and managed to remain in the area.
