In the tropic savannas, a variety of vegetation and grass prairies grow. The dominant plant types are the Grasses, in the savanna. A wide variety of grasses grow in savannas but may vary in different savannas. Some grasses grow 6 to 9 feet tall.
Answer:
a) divergent boundaries by submarine eruptions and intrusions of basaltic magma
Explanation:
Divergent boundary is where tectonic plate move apart from each other. Divergent boundary is mostly prevalent in the oceanic crust. The opposing plate tends to move apart from each other.
On the oceanic crust plates move apart from each other causing an upwelling of magma from the aesthenosphere. This magmatic material is introduced through the oceanic ridges. As the magma are introduce the opposing plates separates further . The basaltic magma introduced through the oceanic ridges forms the new oceanic crust. As we move away from the oceanic ridge the rocks gets older . The oceanic ridge where the basaltic magma erupt depict the youngest rocks.
The reason Amazon river is one of the greatest rivers in world is because the volume of water it carries to the sea the area of land that drains into it, and its length and width
B.) human effort and ideas drive production.