Discussion
Assertion (A): The offshore bar formed during a storm protects the beach behind it.
Reason (R): It forces the largest waves to break further seaward and dissipate their energy.
Answer: A
Both are true and the reason gives the protective mechanism, and the bar is therefore a self regulating response. Removing it by dredging would expose the beach to the full wave attack. The bar is part of the beach's own defence.
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