Oceans Currents and Tides Level 2 Geography GK Practice Questions
Aspirants who already know the basic terms of ocean geography can use this Level 2 set to apply them. It is a General Awareness Geography quiz on Aptitude360 covering the thermocline, salinity contrasts, the tidal cycle, current patterns and ocean floor features. Matching, odd-one-out and sequence questions test understanding rather than single facts.
Concepts tested in this Level 2 oceans quiz
- Order of ocean floor features from coast to open basin, and mid-oceanic ridges
- Thermocline and how temperature changes with depth
- Brackish water and the low salinity of the Black Sea
- Sequence of spring and neap tides through a month, and of flow and ebb
- Perigee, and how it differs from the solar term perihelion
- Causes of currents, cold currents along western coasts, and fishing grounds where currents meet
- Benefits of tides and the formation of tidal bulges
Important ideas on currents and the tidal cycle
- Two tidal bulges form, one facing the Moon and one on the opposite side
- Neap tides are lower because the pulls of the Sun and Moon partly cancel
- River inflow lowers the salinity of enclosed seas
- Plankton thrives where warm and cold waters mix
Smart revision for ocean currents and tides
- Write the monthly tide cycle as a moon-phase timeline
- Keep perigee, apogee, perihelion and aphelion in one table
- Practise odd-one-out by grouping seas by high or low salinity
Ideal stage for this practice set
Best taken after the beginner level, by General Awareness learners revising Geography for competitive exams.