Consider the following statements: 1. Level of the sea is measured as...
Level of seawater is the same everywhere. Elevation of land is measured from the sea level.
Consider the following statements: 1. Level of the sea is measured as...
Understanding Sea Level Measurement
The question requires us to evaluate the correctness of three statements about sea level and land elevation.
Statement 1: Level of the sea is measured as zero.
- This statement is correct.
- The average sea level, referred to as "mean sea level" (MSL), is used as a baseline or reference point for measuring elevation and depth.
Statement 2: Level of seawater is higher in enclosed seas.
- This statement is incorrect.
- Enclosed seas, such as seas that are not directly connected to the open ocean, can have varying levels due to evaporation and river inflow, but they do not consistently have higher water levels compared to open seas.
Statement 3: Elevation of land is measured from the sea basin.
- This statement is partially misleading.
- While elevations are typically measured relative to mean sea level, which is influenced by the sea basin, the statement lacks clarity. Elevation is generally referenced to mean sea level rather than the sea basin itself.
Conclusion
Given the analysis:
- Statement 1 is confirmed as true.
- Statement 2 is false.
- Statement 3, while it references mean sea level, does not adequately clarify the measurement standard.
Therefore, the correct answer is option 'A', as only Statement 1 is entirely accurate.