Answer: (1) photosynthesis occurred
Explanation: The photosynthesis process in cianobacteria changed the composition of earth's atmosphera, rising oxygen levels. This could be possible since photosynthesis used energy from the sun to produce energetic intermediaries to synthesize sugars, and as byproduct due to water photolisis, is oxygen.
Because it creates energy and food for different beings
Because of the large heat of __________ of water, the evaporation from a liquid surface is a very effective cooling mechanism.
Vaporization
The human body makes use of evaporative cooling by __________ to give off energy even when surrounded by a temperature higher than body temperature.
Perspiration
~Hope this answers your question!~
It lasted almost 5 years. 39 months on land (3 years and 3 months), and 18 at sea (1 year and 6 months)
