The answer is - Sunspots.
Sunspots are dark in appearance, but only on a visible light, and this is due to the fact that they are much cooler than the surrounding areas, but that doesn't mean by any means that the sunspots are cool, on contrary, they are very hot too. Sunspots actually are storms that appear in the lower atmosphere of the sun.
Answer:
The mantle lies just below the core. The mantle and core are made up of hard, solid rock.
Explanation:
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Answer:
a. They must be present in a large geographic area.
Explanation:
Index fossils can be used to determine the age of a rock strata with great precision, but they must be scattered over a large geographic area to be able to be used reliable for this type of measurement. Index fossils typically indicate a certain type of paleoenvironment belonging to a very specific prehistoric period and their formation coincides with the age of the rock layer.
Answer:
They are fighting a civil war against the FARC. They are a Marxist-Leninist group, and are Far-Left. The FARC formed in 1964, and has waged a Guerilla war in the jungles for decades. There are peace negotiations ongoing, but many dissidents are still fighting.