Answer: B continental tropical
Explanation: Continental Tropical air masses (cT) are a type of tropical air produced by the subtropical ridge over large areas of land and typically originate from low-latitude deserts such as the Sahara Desert in northern Africa, which is the major source of these air masses.
https://en.wikipedia.org/wiki/Air_mass
The sun rises due east and sets due west.
Answer:
An individual would be unable to observe the changes in the rock cycle, which can last for tens of thousands or even millions of years.
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