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Geography Presentation of Landforms
Transcript of Geography Presentation of Landforms
Abiha Ahmed Landforms Definitions Similarities between Plains & Valleys Contents Plains Definitions Both Valleys and Plains are Landforms.
Both are lower than the land around them.
Both have fertile land.
Both have green land.
Both have floodplains. 1_Definitions
3_Differences Differences between
Plains & Valleys Plains Valleys U shaped valley V shaped valley Oklahoma Plain V Shaped Valleys U Shaped valleys Indo-Gangetic Plain A valley or is a depression with predominant extent in one direction. It is surrounded by higher grounds on each side. A very deep river valley may be called a canyon. What are Valleys? How many types of valleys are there? There are mainly two types of valleys
V-shaped valley The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys. Most valleys belong to one of these two main types or a mixture of them, with respect of the cross section of the slopes or hillsides How are they formed? Valleys are formed over millions of years by:
The river cuts down the mountains to form narrow depressions in between which are shaped like the letter V.
Over millions of years when massive blocks of ice and rocks move downhill they cause the mountain to erode and the v shaped valleys are pressed into U shape. Some Examples of valleys V shaped valley in Nepal
U shaped valley in New Zealand In geography, a plain is land with relatively low relief, that is flat or gently rolling. Plains in their natural state may also be covered in shrub lands, woodland and forest. Vegetation may be absent in the case of sandy or stony plains in hot deserts. Types of flat lands for which the term is not generally used include those covered entirely and permanently by swamps, marshes, or ice sheets.
Plains occur as lowlands and at the bottoms of valleys but also on plateaus at high elevations. They can be found along the coast or inland. What causes plains to form? Plains may have been formed from flowing lava, deposited by water, ice or wind, or formed by erosion by these agents from hills and mountains. Why are plains important? Plains in many areas are important for agriculture because the soils are deposited as sediments and are deep and fertile. The flatness facilitates mechanization of crop production and they support grasslands which provide good grazing for livestock. People settle in plains because land is suitable for cultivation and roads can easily be built. Plains Kaghan Valley Interesting Facts Example of Plains Indo-Gangetic Plain The Indo-Gangetic plain is the most populated region in the world. One seventh of the world's population is settled here. It has very rich, fertile and alluvial soil. It covers northern and eastern parts of India, all of Bangladesh and most populous parts of Pakistan. It comprises the floodplains of Indus, Ganges and Brahmaputra river systems. Plains are flat.
Valleys are narrow. Plains have no shape. Plains are U or V shaped. Plains are extensive
lands. Valleys are depressions. Plains usually don't
have any change in
shape. Plains have change in shape over the years. whereas