Weathering and Erosion

সারসংক্ষেপ

Weathering breaks rock in place; erosion removes and transports the resulting material by water, wind, ice or gravity.

মূল ধারণা

ব্যবস্থাটি বুঝুন

Weathering breaks rock in place; erosion removes and transports the resulting material by water, wind, ice or gravity.

কেন ও কীভাবে ঘটে

কারণ ও প্রেক্ষাপট

Weathering breaks rock in place; erosion removes and transports the resulting material by water, wind, ice or gravity. The governing relationship is: Physical, chemical and biological weathering weaken material, after which moving agents entrain, transport and deposit sediment.

কীভাবে কাজ করে

Physical, chemical and biological weathering weaken material, after which moving agents entrain, transport and deposit sediment.

মূল তথ্য

• Weathering is in situ; erosion involves removal.
• Hydrolysis, oxidation, carbonation and solution are chemical weathering processes.
• Abrasion is wearing caused by transported particles scraping a surface.

গুরুত্বপূর্ণ পরিভাষা

• weathering
• erosion
• abrasion
• mass wasting
• denudation

উদাহরণ ও কেস স্টাডি

• River incision and slope wash in the Himalaya supply sediment to the Ganges-Brahmaputra delta.

কারণ ও উপাদান

• Key components: weathering, erosion, abrasion.
• Physical, chemical and biological weathering weaken material, after which moving agents entrain, transport and deposit sediment.

প্রভাব ও গুরুত্ব

• Hydrolysis, oxidation, carbonation and solution are chemical weathering processes.
• Abrasion is wearing caused by transported particles scraping a surface.
• Application: River incision and slope wash in the Himalaya supply sediment to the Ganges-Brahmaputra delta.

ভূগোলের সাথে সংযোগ

River incision and slope wash in the Himalaya supply sediment to the Ganges-Brahmaputra delta. This illustrates how weathering and erosion varies by location, scale or environmental context.

বাংলাদেশের সাথে সংযোগ

Riverbank erosion along the Jamuna and braided channels displaces land and settlements, while weathering supplies sediment from uplands.

BCS প্রিলিমিনারির তথ্য

• Weathering is in situ; erosion involves removal.
• Hydrolysis, oxidation, carbonation and solution are chemical weathering processes.
• Abrasion is wearing caused by transported particles scraping a surface.

BCS লিখিত বিশ্লেষণ

একটি বিশ্লেষণধর্মী উত্তর তৈরি করুন

• Weathering breaks rock in place; erosion removes and transports the resulting material by water, wind, ice or gravity.
• Physical, chemical and biological weathering weaken material, after which moving agents entrain, transport and deposit sediment. Use river incision and slope wash in the himalaya supply sediment to the ganges-brahmaputra delta. as a named application in a comparative answer.

প্রচলিত ভুল ধারণা

• Deposition is not erosion; it is the settling of transported material.
• Weathering does not require movement of material.

দ্রুত রিভিশন

• Weathering and Erosion
• Weathering is in situ; erosion involves removal.
• Hydrolysis, oxidation, carbonation and solution are chemical weathering processes.
• weathering / erosion
• Definition → process → spatial example