GEOLOGY

Detailed explanation-1: -A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge is an example of divergent plate boundaries.

Detailed explanation-2: -When two continental plates diverge, a valleylike rift develops. This rift is a dropped zone where the plates are pulling apart. As the crust widens and thins, valleys form in and around the area, as do volcanoes, which may become increasingly active.

Detailed explanation-3: -Plates move apart from each other along divergent boundaries. In the ocean basins these boundaries are the mid-ocean ridges, where new oceanic crust forms. Where continents are pulled apart, large gaps, or rift systems, develop. The Great Rift Valley of East Africa is one such rift.

Detailed explanation-4: -False, because the correct statement is: There are three types of divergent plate boundaries, namely continental-continental, oceanic-continental, and oceanic-oceanic.

Detailed explanation-5: -The zone between two plates sliding horizontally past one another is called a transform-fault boundary, or simply a transform boundary.