Cual fue la fuente de los gases en la segunda atmósfera terrestre que se acumularon ?​

Answer glacier terminus;

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

Their neck becomes more flexible allowing for a better view of vision. legs become stronger for running