Ocean Circulation, Ocean Currents, and Tides Quiz

What is the main factor that drives ocean currents?

• a) Wind

• b) Earth's rotation

• c) Sun's heat

• d) Gravity

Which day of the year is celebrated as Water Day?

• (a) 26 January
  

• (b) 15 January
  

• (c) 15 August
  

• (d) 22 March

The Gulf Stream is an example of a:

• a) Warm ocean current

• b) Cold ocean current

• c) Deep ocean current

• d) Tidal current

What causes the tides in the ocean?

• a) Gravitational pull of the Sun

• b) Gravitational pull of the Moon

• c) Earth's magnetic field

• d) Wind patterns

When do spring tides occur?

• a) During a full moon

• b) During a new moon

• c) During both full moon and new moon

• d) During a quarter moon

Neap tides occur when:

• a) The Moon is at its farthest from Earth

• b) The Moon is at its closest to Earth

• c) The Sun is directly aligned with the Moon

• d) The Moon is in its first quarter phase

The rise and fall of sea level due to the gravitational pull of the Moon and the Sun are collectively known as:

• a) Ocean waves

• b) Ocean currents

• c) Tides

• d) Ocean eddies

The largest Tsunami wave travels at the speed of

• (a) more than 700 km per hour
  

• (b) more than 500 km per hour
  

• (c) more than 250 km per hour
  

• (d) more than 100 km per hour

The rhythmic rise and fall of ocean water twice in a day is known as

---

• (a) tide
  

• (b) wave
  

• (c) ocean current
  

• (d) none of these

Which of the following is a cold ocean current that flows along the western coast of South America?

• a) California Current

• b) Labrador Current

• c) Humboldt Current

• d) Kuroshio Current