Answer:
the Andes is the primary mountain range in South America
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.
The Earth is made mostly of it. Explanation; Water is the most important erosional agent and erodes most commonly as running waterin streams. However, water in all its forms is erosinonal
Answer is running water
The sea that forms Polands northern boarder is called Baltic
