Licchavi Lyceum

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Licchavi Lyceum

Geography

Biosphere

The biosphere is zone of the Earth having life. It is a thin layer around the planet where all living organisms exist. It is the global ecological system integrating all living beings and their relationships with the atmosphere, hydrosphere, and lithosphere. What Is the Biosphere? The term biosphere was coined by Austrian geologist Eduard Suess in …

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Weathering & Gradation

The shape of the land is always changing. There are two main types of natural forces that cause this: Weathering – This is when rocks are broken down where they are, without being moved. Gradation – This involves moving broken rock pieces from higher areas to lower areas through things like rivers, wind, glaciers, and …

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Earth

The Earth is unique among planets due to its ability to support life, thanks to the right mix of land, water, air, temperature, and energy. It is part of the solar system and orbits the Sun. Its spherical shape slightly bulges at the equator due to rotation. The Earth has a layered structure: the crust, …

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Universe

The universe is the whole of everything — all that we can see, and even what we cannot. The universe is everything that exists — all of space, time, matter, and energy. It includes: Galaxies (like the Milky Way) Stars (like our Sun) Planets (like Earth) Moons, asteroids, comets, black holes Light, radiation, and even …

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Continental Drift Theory of Taylor

The Continental Drift Theory, first proposed by Frank B. Taylor in 1910, was one of the earliest scientific ideas suggesting that continents are not fixed but move over the Earth’s surface. Although often overshadowed by Alfred Wegener’s later and more refined theory (1912), Taylor’s contributions were foundational in shaping the concept of continental mobility, which …

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Theory of Cycle of Erosion by Penck

Theory of Cycle of Erosion by Penck emphasizes that uplift and erosion occur simultaneously and that the shape of landforms is determined by the rate of uplift and erosion, not solely by time. He rejected Davis’s time-dependent stages (youth, maturity, old age). The Theory of Cycle of Erosion was propounded by Walther Penck, a German …

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Principles of Environmental Impact Assessment and Environmental Management

Environmental Impact Assessment (EIA) is a formal process used to predict the environmental consequences of a proposed development project or policy. It aims to ensure that potential environmental effects are identified before decisions are made and actions are taken. The purpose is to promote sustainable development by integrating environmental considerations into decision-making. Detailed Principles of …

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