Geography Archives - Page 3 of 5

Landforms and their evolution

January 17, 2022November 8, 2022 pcsclasses

Landforms and their evolution Landforms are the natural process of the earth’s surface that includes mountains, hills, plateaus, and plains. Landforms consist of their own physical shape, size, and materials. These are the results of certain geomorphic processes and agents. Landforms may change their shape, size, and nature after their formation as a result of the continued action of geomorphic processes and agents. Evolution of Landforms: It implies stages of transformation of either a part of the earth’s surface from one landform into another or the transformation of individual landforms…

Important Lakes of the World

November 17, 2021November 15, 2022 pcsclasses

Important Lakes of the World: Lake is a body of water surrounded by land. Lakes are water bodies with slow-moving, or standing water that are occupied in an inland basin. Here we discuss some important lakes all over the world with their continent, basin countries, area, and maximum depth. List of important lakes of the world Many lakes are found all over the world that are important in their aspects; a list of important lakes in the world is given below: Caspian Sea: (An Oceanic lake- also called Mazandaran Sea,…

Rivers of India and their main Tributaries

October 29, 2021October 28, 2023 pcsclasses

Rivers of India and their main Tributaries Rivers on the basis of the direction of discharge The major rivers of India can be divided on the basis of the direction of flowing or discharge of water: Discharges into the Arabian Sea: Narmada, Tapi, Sindhu, Sabarmati, Mahi, Purna Discharges into the Bay of Bengal: Brahmaputra, Yamuna, Ganga (and tributaries), Meghna, Mahanadi, Godavari, Krishna (and tributaries), and Kaveri. Rivers on the Basis of Sources On the basis of sources, the Indian rivers can be classified as Himalayan Rivers and Peninsular Rivers. Himalayan…

The Solar System

August 28, 2021December 28, 2023 pcsclasses

The Solar System The solar system is a family of the Sun along with eight major planets, dwarf planets (Ex. Pluto), satellites, asteroids, Moons, meteors, and comets. All these orbit the sun to form the Solar System. Sun is our motherly and nearest star, which creates energy from nuclear reactions deep within the interior, by its light and heat life is possible on Earth. Origin of Solar System: The solar system formed 4.6 (4.568) billion years ago from the gravitational collapse of a giant interstellar molecular cloud. Bodies close to…

Major waterfalls of India

July 24, 2021November 15, 2022 pcsclasses

Major waterfalls of India A waterfall is a site where water flows over a vertical drop or a series of steep drops in the course of a stream or river. Waterfall may be found at a band of more resistant rock, at a nick point, or at places where deposition has occurred. List of some important major waterfalls: Waterfall Height state Features Kunchikal Falls The fall is formed by the Varahi river 455meters (1,493 ft) Shimoga district, Karnataka cascades down Barehipani Falls By river Budhablanga, It is the second-highest waterfall…

SEAFLOOR SPREADING

July 8, 2021July 20, 2023 pcsclasses

Seafloor Spreading The concept of seafloor spreading was proposed by Harry Hammond Hess in 1961 (an American geologist). He discovered the mid-Atlantic ridges i.e. mid-ocean ridges. It is a geologic process in which tectonic plates splits apart from each other. The process of seafloor spreading occurs at mid-oceanic ridges, in which a new oceanic crust is formed through volcanic activities and then gradually moves away from the ridges. Some Important evidence for seafloor spreading: Along the mid-oceanic ridges, volcanic eruptions are common and they bring huge amounts of lava to…

Major straits of the world

June 25, 2021March 7, 2022 pcsclasses

Major straits of the world What is Strait? A strait is a naturally formed, narrow, typically navigable waterway that connects two larger bodies of water. Most commonly it is a channel of water that lies between two landmasses. Some straits are not navigable, for example, because they are too shallow, or because of an unnavigable reef or archipelago. Straits are also known to be loci for sediment accumulation. What is the name of the largest Strait in the world? Strait of Malacca Connect Andaman sea with South China is the…

Atmosphere: Composition and Structure

June 16, 2021November 6, 2022 pcsclasses

Atmosphere: Composition and Structure Atmosphere of Earth The atmosphere is an envelope of gases surrounding the earth, these gases are commonly called air. The air is one of the necessary conditions for the existence of life on the planet. The atmosphere of Earth protects life on Earth. The atmosphere is a mixture of gases that is odourless, colourless, tasteless, and formless, blended so thoroughly that it behaves like a single gas. It contains life-giving gases like Oxygen for humans and animals for breathing and life support and Carbon di Oxide…