Question

The topography of Bangladesh is continually reshaped by

Answer 1

The topography of Bangladesh is frequently altered due to floods.

Explanation:

• Even though Bangladesh is a small country, it has considerable topographic diversity.
• It has three prominent features - a large alluvial plain subject to frequent flooding, a slightly elevated relatively older plain and a small hill region drained by flashy rivers.
• Bangladesh experiences heavy monsoon rains, especially over the highlands.
• Causes of flooding in Bangladesh include -

i. monsoon climate which brings heavy rains.

ii. spring snow-melt which results in soil erosion and a rapid increase in river discharge.

ii. deforestation in head water areas due to increasing population in Nepal and Tibet.

iv. rivers slit-up due to increased soil erosion which raises river beds and lowers the capacity of the channel resulting in floods.