a paragraph in about 70-80 words on the topic-‘Floods - methods of mitigating the impact of
floods in urban areas’.
Answers
Answer:
where is your question please ask full question
Answer:
Control of Floods. Some methods of flood control have been practiced since ancient times. These methods include planting vegetation to retain extra water, terracing hillsides to slow flow downhill, and the construction of floodways (man-made channels to divert floodwater).
Explanation:
planting vegetation: Use the word vegetation to refer to all plants and trees collectively, typically those in a specific region. ... Vegetation, as well as meaning all plant growth, can refer to the growth process of a plant. The lettuce you planted a couple weeks ago is at an early stage of vegetation.
terracing hillsides to slow flow downhill: A terrace is an earth embankment, channel, or a combination ridge and channel constructed across a slope. CONDITIONS WHERE TERRACES ARE APPLIED. Terraces are used on sloping cropland to conserve rainfall, safely conduct runoff water from the land, and help control erosion.
construction of floodways : A floodway is defined as a man-made diversion channel that is created for the discharge of river flow during flood events, without increasing the water surface elevation more than a particular reference level, usually the 100-year flood level.