Lecture on Salt Marshes
This lecture introduce on Salt Marshes. Salt Marshes is a community of emerged halophytic vegetation in areas alternately inundated and drained by tidal action.” Here briefly focus on…
Geography
Presentation on Rock Cycle
Prime purpose of this lecture is to present on Rock Cycle. Rocks change from one form to another, any type of rock can change into another type,…
Metamorphic Rocks
Metamorphism means to change. Rocks change with temperature and pressure. Usually takes place deep in the Earth. A metamorphic rock is a result of a transformation of…
Sedimentary Rocks
Sedimentary rocks are formed by erosion. Sediments are moved from one place to another. Sediments are deposited in layers, with the older ones on the bottom. The layers…
Lecture on Igneous Rocks
Igneous rocks are formed by the cooling and hardening of molten rocks. There are two types of Igneous Rocks. Extrusive/Volcanic Rocks. When magma reaches the surface it…
Presentation on Rocks
Principle objective of this lecture is to present on Rocks. A rock is a naturally occurring solid mixture of one or more minerals. Rocks are classified by how…
Presentation on Pangea
This lecture introduce on Pangea. Pangaea was a super continent at one time. Scientists use the similarity of rock types and fossil types that date to the same…
Presentation on Mid-Plate Hotspots
The aim of this lecture is to present on Mid-Plate Hotspots. Whilst most tectonic activity is focused on plate margins, it is possible for earthquakes and volcanoes…
Lecture on Transform Plates
Transform Plate Boundaries are locations where two plates slide past one another. The fracture zone that forms a transform plate boundary is known as a…
Presentation on Divergent Plates
Basic objective of this lecture is to present on Divergent Plates. Divergent boundaries in the middle of the ocean contribute to seafloor spreading. As plates made of…
Presentation on Convergent Plates
General objective of this lecture is to present on Convergent Plates. In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction),…
Tectonic Plate Types
There are three kinds of plate tectonic boundaries: divergent, convergent and transform plate boundaries. Convergent – plates move toward one another. Divergent – plates move away from each other. Transform…
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