#5 the answer is glucose because it is a simple sugar and plays a role in cellular respiration and photosynthesis
C a salinity of less than 1%
About the geologic time scale divisions
The geologic history of the Earth is broken up into hierarchical chunks of time. From largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.
Methane the most, small amount of oxygen and other gases
