Chapter 14 MOVEMENTS OF OCEAN WATER

1. .  consider the following  statement regarding  Major currents in the Pacific, Atlantic and Indian oceans   .

Choose the correct answer

                  Codes

                     1>2>3>4

2. Upward and downward movement of ocean water is known as the:

3. Consider the following statement in relation to determining warm current.

1. Gulf stream .c
2. Kuroshio .c
3. California .c
4. Alaska .c

Which of the statements given above is/are correct?

4. Consider the following statement in relation to determining warm current.

1. Gulf stream .c
2. Kuroshio .c
3. California .c
4. Alaska .c

Which of the statements given above is/are correct?

5. Take a look at the following statement on ocean currents.

1. Ocean currents are similar to river movement.
2. Ocean currents represent a constant volume of water moving in a specific direction.

Select the incorrect response.

6. Spring tides are caused:

7. Take a look at the following statement on ocean currents.

1. The Alaskan Current is a warm current that flows counterclockwise.
2. The Kuroshio Current is a warm current that flows clockwise.

Select the correct response.

8. The distance between the earth and the moon is minimum when the moon is in:

9. Take a look at the following statement on ocean currents.

1. When cold water at the poles lowers and slowly travels towards the equator, cold-water ocean currents form.
2. Warm-water currents flow out from the equator along the surface, replacing sinking cold water until it reaches the poles.
3. The Gulf Stream is a chilly stream, but the Labrador Ocean current is warm.

Select the correct response.

10. The earth reaches its perihelion in:

11. Take a look at the following statements.

1. Tides and waves are examples of vertical motion.
2. Ocean currents and tides are examples of horizontal motion.
3. Ocean currents and waves are examples of horizontal motion.
4. Tides are referred to by the vertical motion.

Which of the following assertions is/are correct?

12. Take a look at the following remark about Tides.

1. A tide is the periodic rise and fall of the sea level that occurs once or twice a day.
2. Tides vary in frequency, direction, and movement from one location to the next, as well as across time.

Select the correct response.

13. consider the following statement .

1. Statement : (A) A tide is the cyclical rise and fall of ocean water twice a day.
2. Reason : (R)  The tides are caused by the tremendous gravitational pull of the sun and moon on the earth’s surface.

Choose the correct answer

14. Take into consideration the following statement:

The sun, moon, and earth are all in the same line on full moon and new moon days.

Select the correct response.

15. Take a look at the following remark on neap tides.

1. The spring tides and neap tides are separated by seven days.
2. It occurs when the earth passes between the sun and the moon.

Select the correct response.

16. Take a look at the following remark about high tides.

1. It aids navigation.
2. It is beneficial to fishing.

Select the correct response.

17. Which of the following is the best method for influencing ocean currents?

1. wind
2. force of coriolis
3. solar-powered heating
4. gravity

Select the correct response.

18. The Coriolis force intervenes and causes the water to move to the

right in the northern hemisphere and to the left in the southern hemisphere.

These large accumulations of water and the flow around them are called

19. Take a look at the following statement.

1. Salinity-rich water is denser than salinity-poor water.
2. Warm water has a higher density than cold water, and denser water always sinks.

Select the correct response.