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:
C
Explanation:
The king treated it as his property.
It would be normal faulting, like the Mid-Atlantic Ridge
Societies are classified on the basis of dominant types of economic activity into agrarian and industrial societies. In an agrarian society the dominant type of economic activity is agricultural whereas in an industrial society factory production is the dominant type of economic activity.
Increased heat, drought, insect outbreaks, declining water supply, reduced agricultural yields, health impacts in cities due to heat, flooding and erosion in coastal areas
