Similar fossils found on different continents helped geologists determine how the continents used to be connected. Mountain belts marked the boundaries of moving plates, which showed in which direction the different continents drifted. Extrapolating from this information, scientists had a rough idea of how the continents were arranged eons ago.
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Nanotechnology helps to improve viscous fingering and the nano-particles can transmit through nanopores of sandstone which helps to increase the recovery by decreasing the surface tension between oil and water. The pore spaces are very fine so water molecules cannot penetrate through all of them in order to push the oil. This is why the nano-particles such as iron (Fe) and Silicon (Si) are used with distilled water. These particles can easily move through the interconnected pores and thereby pushes the oil to move out of it. It is a widely accepted concept in Enhanced Oil Recovery (EOR).
The ocean floor or seabed can be divided into three major regions: the continental margins, abyssal plains, and mid-ocean ridges.
Slavery was more prevalent in South Carolina than in North Carolina because settlers of South Carolina came from plantations in Barbados and settlers of North Carolina usually had small farms. Another factor why slavery was common in the Carolinas was because the colonists in the Carolinas came from the Caribbean, where slavery was common.
1. medieval - relating to a time in European history from about 500 to 1500 A.D.
2. Norse - relating to Scandinavia and its people
3. legacy - anything that is handed down from one generation to the next
4. migration - the act of moving from one place to another
5. Gupta - an empire that lasted about three hundred years in India
6. Tang - Chinese dynasty lasting about three hundred years
