The Andes is the longest mountain range in the world, stretching over 7,000 kilometers along the entire western coast of South America. It passes through seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina. While the Himalayas are the ...
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Mountains are classified as Second-order landforms. In geomorphology, First-order landforms are the continents and ocean basins. Second-order landforms are the major features built upon them by internal tectonic forces, such as mountains, plateaus and plains. Third-order landforms are smaller features ...
Secondary waves (S-waves), also known as shear waves, cannot pass through liquids. They require a medium with “shear strength” (the ability to resist changing shape) to propagate. Since liquids (like the Earth’s outer core) do not have shear strength, S-waves ...