Due to the erosion of glaciers, various features are formed on mountains. 1 ) Ice Depressions – When glaciers move down from high mountain areas, they create depressions on the mountain slopes. These depressions gradually become deep troughs. Over time, these troughs become so deep and wide that glaciers are formed and nourished by them. … Read more
Classification of Rocks There are many types of rocks that can be classified into three main categories based on their fundamental nature and origin of formation: Igneous rocks Sedimentary rocks Metamorphic rocks” Related- Explain the composition of the Earth’s Womb. Describe the Principle of Plate Tectonics. Describe the Concept of Normal Erosion Cycle Propounded by … Read more
There are the following ideologies about the interior of the earth (1) The Innermost Hypothesis of the Earth’s Interior German geophysicist Suess proposed the idea that the melting point of any substance increases with an increase in pressure, but experiments have shown that this is only possible up to a certain extent. No mineral substance … Read more
Volcanic eruptions are activities that involve the movement of lava from the interior of the Earth to the Earth’s surface. They are divided into two categories: Intrusive: In this process, the underground lava does not reach the surface but cools below the surface, forming different structures such as dikes, sills, laccoliths, and volcanic necks. Extrusive: … Read more
An earthquake is a phenomenon where the land vibrates or moves back and forth. This movement is caused by waves of flexible compression passing through the earth’s crust. Essentially, an earthquake is a disturbance of the earth’s crust that causes the land to move in a back-and-forth motion. When an event occurs inside the earth, … Read more
There are many relief features on Earth, which can be classified into three categories. The first-order relief features include continents and oceans. The second-order relief features include mountains, plains, and plateaus, which are formed by internal movements of the earth and exogenous waters. The third-order relief features include valleys, hills, deltas, and glaciers, which are … Read more
The velocity of air also depends on air pressure. The gradient of air pressure affects the speed of air. When the gradient of air pressure decreases, the wind blows at a high speed. Isobaric lines indicate the gradient. If the isobars are close to each other, then the air pressure is high and the winds … Read more
The origin of the Earth is a mysterious topic that has been debated by scholars for centuries. However, as science progresses, more information is coming to light. There are two main views on the origin of the Earth: the monotheistic or monistic hypothesis and the pairwise or dualistic hypothesis. Throughout history, several concepts and hypotheses … Read more
The condition that balances the upper and lower parts of the Earth’s crust is called “geoequilibrium” or isostatic condition. The term isostasy was first used by American geologist Dutton in 1889. Due to isostasy, mountains, plateaus, plains, and seas exist side by side. Exogenous forces continuously accumulate soil in the plains and seas by cutting … Read more
Meaning of Plate Tectonics The term “plate” was coined by Canadian geophysicist J.T. Wilson in 1965 to refer to a solid landmass on Earth. The study of the nature and movement of these plates is known as plate tectonics. The concept of plates emerged from two observations: (1) The movement of continents and (2) The … Read more