Answer:
D. The youngest volcano of the track occurs at one end of the track.
Explanation:
Hotspot tracks can be described as a process in which lines of islands, atolls, and seamounts are produced as plate continues to move away from the lava stream, it carries built up volcanoes with it; as these volcanoes cool and subside.
Examples are Hawaii, Yellowstone and Iceland hotspots.
<span>These are known as tephra, pyroclats or more generally as volcanic bombs.</span>
Answer:
The Oceans are saline or salty because of the several natural occurrences. One of the reason is the rivers because it brings water with minerals by crossing over soil and stones, moving salt along the way, which adds into the oceans, results in salinity by evaporating the water.
Ocean salinity levels can change from place to place. The Mediterranean Sea is saltier. The Atlantic Ocean has access to the freshwater rivers, such as the Amazon which provide less salinity in the ocean.
A. A was deposited most recently in the diagram above, as it is located in the top, showing that is the newest layer to be added.
Fossil records from separate continents, particularly on the outskirts of continents show the same species. As well mineral specimens along the supposed break lines of the continents are nearly identical. Some identical species exist on certain continents, like an earthworm common to both Africa and South America suggesting the species could not have spontaneously arisen on both continents without some variations.
