The correct answer is - plate tectonics.
The convection currents in the mantle, are having very high temperatures and very high pressures. Because of that, they managed to crack the crust, and thus divide the surface of the Earth in multiple peaces, or as we call them, tectonic plates. The very high pressure from bellow manages to push the tectonic plates in certain direction, and even though that movement is only a couple of cm per year, on the long term it has huge effects on everything on the planet.
The greenhouse effect is related to the increase in the average surface temperature which is considered "global warming". Global warming is the result of an increase in gases like methane, carbon dioxide, and other factors that lead to a rise in the planet's temperature.
Answer:
Cardona concluded that the study shows how, over the more than 25,000 years that modern humans been lived in Siberia, various peoples have adapted to the region's cold weather and meaty food sources through selection on multiple genes that control several biological mechanisms.
Explanation:
Precious gems would be my best guess, it's the only natural rescource that's only in one area. Sooo.... Precious gems i guess
Mansa was a royal title for leaders of the Malian Empire. It means something like "King" or "Super-King" or "Kingiest King."
Mansa Musa was one of the most important Mansas. He lived from the late 1200s to the early 1300s, and reigned over the Malian Empire at the peak of its power.
