state gov TNPSC Group 4 (தமிழ்நாடு குழு IV) Mock Test 2025 General Knowledge Geography (World Geography) Oceanography
Statement 1: Fathoms is a nautical measurement of the depth of water in the ocean.
Statement 2: Isobath is an imaginary line on a map joining the points of equal depths.
Statement 3: Isohaline is an imaginary line on a map joining the points of equal salinity in oceans.
1
Only statement 1 is true.
2
Only statement 2 is true
3
Only statement 3 is true
4
All statements 1, 2, and 3 are true