Question 1

Which of the following statements regarding neap tides is/are correct? 1. It occurs every 14–15 days, which coincides with the first and third quarter of the Moon. 2. This tide has a small tidal range because the gravitational forces of the Moon and the Sun are in quadrature. Select the answer using the code given below:

1 only2 onlyBoth 1 and 2Neither 1 nor 2

Question 2

Which of the following is/are warm ocean current(s)? 1. Alaska Current 2. Agulhas Current 3. Falkland Current 4. West Australian Current Select the answer using the code given below:

1 only1 and 23 and 44 only

Question 3

Mariana Trench is located in the ocean floor of

Southern Atlantic OceanWestern Pacific OceanEastern Pacific OceanNorthern Atlantic Ocean

Question 4

Consider the following statements with reference to sea waves: 1. The height of waves is determined by wind speed, wind duration, and fetch 2. The energy of a wave is proportional to the square of its height 3. Waves retain most of their energy as they travel across the deep ocean Which of the statements given above is/are correct?

1 only1 and 2 only2 and 3 only1, 2 and 3

Question 5

Spring tides refer to

greatest difference in the sea level at high and low tideslowest difference in the sea level at high and low tidesno difference in the sea level at high and low tidescounteraction of gravitational pull of the Sun to that of Moon

Ocean Currents, Tides and World Regions

Core concepts

Common mistakes

Chapter-end mini quiz