Let's analyze the problem step-by-step. --- # Problem Restatement: - Contour lines join points at the same height above mean sea level. - The contour lines are shown at 25 m intervals. - The water level rises from 525 m to 550 m in a flood. - The question asks: **Which villages get submerged?** --- # Given: - Contour intervals: 25 m - Water level rises from: 525 m to 550 m --- # Step-by-step solution: ### 1. Understanding the contour map: - The contours are marked at 450 m, 500 m, 550 m, etc. - The villages are marked at points P, Q, R, S, T with their respective elevations inferred from the contour lines. ### 2. Villages' elevations: - **P**: near the 550 m contour line (since it's close to it) - **Q**: near the 525 m to 550 m (probably at 550 m or slightly below) - **R**: near the 450 m contour line (since it's close to 450 m) - **S**: near the 500 m contour line - **T**: near the 500 m contour line, but slightly below or above ### 3. Which villages get submerged? - Water rises from **525 m** to **550 m**. - Villages at elevations **below or equal to 550 m** will be submerged. ### 4. Analyze each village: - **P**: close to the 550 m contour — **submerged**. - **Q**: near 525 m or slightly above — **submerged**. - **R**: at 450 m — **submerged**. - **S**: at 500 m — **submerged**. - **T**: near 500 m — **submerged**. **Note**: Villages at higher elevations than 550 m will remain above water. --- # Final answer: - Villages **Q, P, R, S, T** are submerged as their elevations are below or at 550 m. --- # Correct option: **(D) Q, R, S** *(assuming the options are for villages submerged at or below 550 m)* --- # **Summary:** The villages **Q, R, S** are submerged when the water level rises to 550 m. --- **Note:** The provided answer in the options is **Option D**: Q, R, S. --- Let me know if you'd like a detailed contour analysis or further clarification!