You should spend about 20 minutes on this task. The diagrams below show how houses can be protected in areas which are prone to flooding. Write a report for a university, lecturer describing the information shown below. Summarise the information by selecting and reporting the main features and make comparisons where relevant. You should write at least 150 words.

The diagrams illustrate how residential areas are protected from

Use synonyms

flood

Add an article

the flood

a flood

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.

Overall

Linking Words

, there are two ways to safeguard housing

building

Fix the agreement mistake

buildings

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in

flood

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areas, with or without a stopbank. Both solutions consider historical data

while

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the former is an extension of the latter. In the first solution, buildings' floor levels are elevated from the ground to the freeboard level which is 300mm from the past

100 year

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100-year

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flood

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level. As an extended solution, a stopbank

is build

Change the verb form

is built

is building

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near the riverbank from the ground to the freeboard level. Its main objective is to act as a blocker for the

flood

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that is

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triggered by the increment in the riverbank, consisting of two main components a berm, and a floodgate. Despite blocking the water coming in from the river, internal rainfall could not flow out too. The

existences

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existence

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of a berm and a floodgate solve

this

Linking Words

problem partially by releasing the internal outflow into the river ,

Linking Words

however

Add a comma

,however

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there will still be minor internal ponding on the mainland.