Estuaries are coastal water bodies where rivers meet the sea and mix with saltwater. On the west coast, rivers like Narmada and Tapti flow rapidly into the Arabian Sea, forming estuaries due to the narrow land strip and steep Western ...
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The Himalayas were formed about 50 million years ago when the Indian landmass collided with Eurasia. The land between them crumpled and rose like a wrinkled carpet, forming high mountains. The Indian plate continues to push, so the Himalayas are ...
The Aravallis act as a natural barrier between the Thar Desert and the eastern fertile lands. Their elevation and forest cover reduce wind speed, preventing sand and desert conditions from spreading eastward into agricultural regions, thus protecting the ecosystem and ...
In deserts, people sun-dry vegetables. In the Himalayas, they smoke meat or dry fruits. Coastal regions use salt or pickling to preserve fish. In the south, spices help prevent spoilage. Food preservation varies with climate, helping people store food for ...
Different colours on a physical map show elevation and landforms. Green shows plains, yellow shows plateaus, brown shows mountains and blue shows water bodies. These colours help readers understand the height, depth and terrain of different regions quickly. Class 7 Social ...