Which of the following statements regarding barrier islands is/are correct?
- 1. These are small chain of sand islands that form offshore, far from the coast.
- 2. Lagoons or shallower marshes separate the barrier islands from the mainland.
- 3. Such locations are hazardous for settlements because they are easily swept away by storms and hurricanes.
Select the correct answer using the code given below.
1 only
1 and 2 only
2 and 3 only
1, 2 and 3
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CDS-1 – 2024
Statement 2 is correct. Barrier islands are typically separated from the mainland by a lagoon, bay, or shallower marsh area.
Statement 3 is correct. Due to their low elevation, sandy composition, and location exposed to the open ocean, barrier islands are highly vulnerable to erosion and flooding from storms, hurricanes, and rising sea levels, making them hazardous locations for permanent settlements.