Spanish is the official language of 9 out of 13 nations in South America since great majority of people who lived there speak Spanish. This is also because of the influence of the Spaniard colonists way back then. I hope this answer helps.
To become a accepted scientific theory from an inside-out model would lead to a common conclusion from various incidents.
Thus it becomes clear:
among all the options given here only option C i.e "Discovering that a large majority of volcanic eruptions on Earth fail to release water vapor" does not leads to any conclusion based on the interventions
chile, Mexico, United States, Antarctica, Russia, Japan, Philippines, New Zealand, Papua New Guinea, Indonesia, Canada, Taiwan, Guatemala
Acid precipitation is caused by a mix of B. Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides.<span>
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The density of an air mass depends on the temperature and humidity levels.