The Main Landforms Associated With These Processes (Changing river environments)
Gbogbo ọrọ náà
A river is a sculptor working in slow motion. With the same handful of tools, erosion, transport and deposition, it cuts plunging waterfalls in the hills, swings lazy meanders across the lowlands, and fans out fertile deltas at the sea. Read the shape of a valley and you can read the river's energy, its rock, and its age.
This lesson takes you landform by landform, from the V-shaped valleys and waterfalls of the upper course to the meanders, oxbow lakes, levees, floodplains and deltas of the lower course. For each one you will learn its key features and, just as importantly, the step-by-step process that forms it, with real examples such as Niagara and Victoria Falls.
Ebumnobi
- The characteristics and formation of landforms: waterfalls, rapids, gorges, V-shaped valleys, meanders, oxbow lakes, levées, floodplains, deltas, interlocking spurs, potholes.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
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Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na The Main Landforms Associated With These Processes (Changing river environments). Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- A waterfall forms where: A. soft rock lies over hard rock B. hard rock lies over soft rock C. the river deposits its load D. two rivers meet Answer: B
- On a meander, erosion is greatest on the: A. inner bank B. outer bank C. river bed only D. slip-off slope Answer: B
- An oxbow lake is finally cut off from the main channel by: A. erosion B. evaporation C. deposition across the loop ends D. tributaries Answer: C
- Raised banks built by deposition during floods are called: A. terraces B. levees C. deltas D. spurs Answer: B
- A steep-sided valley left as a waterfall retreats is a: A. floodplain B. delta C. gorge D. meander Answer: C
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara The Main Landforms Associated With These Processes (Changing river environments)? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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