Answer:
The answer is - water vapor released from volcanic outgassing
Explanation:
The earth's interior contains minerals with hydrogen and oxygen, volcanic eruptions spewed gases from the earth's interior to the atmosphere through a process called Outgassing or Degassing which still continues today. Outgassing is the spontaneous evolution of gas from solid or liquid, degassing / degasification is the deliberate removal of dissolved gas from solid or liquids especially water or aqueous solutions. The continual outgassing or degassing process releases H2O as water vapor into the atmosphere (producing rain- rivers, lakes, oceans), carbon dioxide.
Forces of gravity prevent the water from leaving the planet.
Answer:
<h3>It was troubled by two hundred years of violence and warfare.
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Explanation:
- The Waring States period of ancient China was the period between 475-221 BC and was the last period of the Zhou Dynasty era (1046–221 BC). During this period various states revolted against the Zhou Dynasty and secured their own independence from the dynasty.
- There were seven major warring states that fought and engaged in warfare with one another as well as the dynasty for their own territories. There was intense violence and unrest during this period and it occurred for about two hundred years.
<span>Prior to the standard gauge track, railroad travel was much more arduous and painstaking. There were originally several types of gauges used on a railway track. This caused long train trips to require multiple stops in order to change train cars. With the standard gauge track on trains in the 1800s, multiple changes were no longer necessary and so the trips were shorter.</span>
