Presentation on Tornados
General objective of this lecture is to present on Tornados. Here briefly describe some dangerous facts on tornados. Like; Winds can exceed 300 mph; Around 1,000 occur on…
Geography
Methods of Conservation of Resources
Principle objective of this lecture is to present on Methods of Conservation of Resources. Material substitution: Holding materials : Plastic cups = Paper cups; Plastic plates = Palm…
Importance of Salt Marshes
This lecture briefly describe on Importance of Salt Marshes. main importance are Productivity; Habitat; Erosion control and Filtration. Salt marsh plants provide detritus for the estuarine food web. Salt marshes are important…
Why do Tectonic Plates Move?
Main objective of this lecture is to present on Why do Tectonic Plates Move. Tectonic plates move because they are floating on top of the liquid mantle.…
Lecture on Sumac Tree
Sumacs are shrubs and small trees that can reach a height of 1–10 metres (3.3–33 ft). The leaves are spirally arranged; they are usually pinnately compound,…
Climate of South America
The aim of this lecture is to present on Climate of South America. South America has both rainforests and deserts. Half of the rainforest in the world is…
South America: Continent Series
Introductory part of this lecture is to present South America: Continent Series. South America, the planet’s 4th largest continent, includes (12) independent countries and (3) major territories;…
Presentation on Social Welfare and Environment
Major objective of this lecture is to present on Social Welfare and Environment. A social welfare system provides assistance to needy individuals and families. The types and…
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…
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…
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