Geography

Water

Question:

Give an account of ocean currents. [Imp.]

Answer:

Ocean currents are streams of water flowing constantly on the ocean surface in definite directions. The ocean currents may be warm or cold. The warm ocean currents originate near the equator and move towards the poles. The cold current

carry water from polar or higher latitudes to tropical or lower latitudes. For example the Labrador Ocean current is cold current while the Gulf Stream is a warm current. The ocean current influence the temperature conditions of the area.
Warm currents bring about warm temperature over land surface. The areas where the warm and cold currents meet provide the best fishing grounds of the world. For example seas around Japan and the eastern coast of North America. The areas where a warm and cold current meet also experience foggy weather and therefore navigation becomes difficult.

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Water

Q 1.

What do you mean by salinity? [V. Imp.]

Q 2.

What is the significance of World Water Day?

Q 3.

How are spring and neap tides formed.

Q 4.

What happened to the Indira point during the tsunami of 2004?

Q 5.

Answer the following questions briefly.
(a) What is precipitation?
(b) What is water cycle?
(c) What are the factors affecting the height of the waves?
(d) Which factors affect the movement of ocean water?
(e) What are tides and how are they caused?
(f) What are ocean currents?

Q 6.

Give reasons:
(a) Ocean water is salty.
(b) The quality of water is deteriorating.

Q 7.

Write a note on the importance of water. [V. Imp.]

Q 8.

What is the average salinity of the oceans?

Q 9.

What happens during high Ode?        [Imp.]

Q 10.

What is terrarium?

Q 11.

Which type of water do the ocean bodies and the seas contain?

Q 12.

What happens during low tide?

Q 13.

How are tides caused?

Q 14.

What is the salinity of Dead sea?

Q 15.

Name one warm curreht and one cold current.

Q 16.

How do we classify ocean movements? Explain. [V. Imp.]

Q 17.

What is Tsunami? [V. Imp.]

Q 18.

Why do swimmers float in Dead Sea?

Q 19.

Write a brief note on Tsunami.  

Q 20.

How are high tides important?[V. Imp.]

Q 21.

Explain water cycle with a neat and labelled diagram.

Q 22.

What are waves? Write a short note on it

Q 23.

Give an account of ocean currents. [Imp.]

Q 24.

For Fun
Be a Detective
1. The name of one river is hidden in each of the sentences below. Spot it. Example: Mandira, Vijayalakshmi and Surinder are my best friends