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प्रश्न
Write a brief note on sea waves.
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उत्तर
- Of all the movements of the oceans, sea waves are considered to be the strongest.
- Sea waves are ripples on water caused when winds blow over the sea.
- The height of these waves depends on the speed of wind, its duration and the direction from which they blow.
- Sometimes waves are also caused by tremors felt on the ocean floor.
- Such waves are quite destructive and called Tsunami.
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संबंधित प्रश्न
Ocean currents are produced due to ______.
Assertion(A): Submarine canyons are deep gorges on the ocean floor.
Reason(R): They are mainly restricted to continental shelf, slope and rise.
Mention the various relief features of ocean floor.
Assertion (A): The gravitational pull of the sun and moon on earth cause tides on sea water.
Reason (R): Neap tides are caused when the first and last quarter moon appears.
Assertion (A): On the basis of temperature, ocean currents can be classified as warm currents and cold currents.
Reason (R): The movement of ocean current from the low latitudes towards high latitudes cause cold current.
The ocean waters are saline in nature.
Consider the following statement.
- Submarine Fans which are similar to the alluvial fans found in water.
- Aquatic life has a very slow rate of metabolism.
- Dragon Hole is the deepest known underwater sinkhole in the world.
- Abyssal plains are usually covered by a thick layer of sediments.
How is the energy of the falling wave water used?
Give reason for the following.
Most of the Creek area get submerged.
“71% of the earth is covered by water but very little can be used by humans. Why?
