1. WHAT IS THE FIRST INDICATION THAT TSUNAMI IS APPROACHING?
2. MENTION TWO REASONS OF HIGH SALINITY IN LANDLOCKED SEAS.
3. WHY DO THE TIDES NOT OCCUR IN RIVERS, LAKES, PONDS AND OTHER WATER BODIES?
4. WHICH FACTORS AFFECT THE MOVEMENT OF OCEAN WATER?
Answers
Answer:
1). One of the signs of a potential tsunami is the occurrence of a very large earthquake that lasts for more than 20 seconds. If an area has been shaken by a very large earthquake, one should be on alert that shorelines located within the radius of the earthquake's epicentre, may be hit by a tsunami.
Answer:
1. One of the signs of a potential tsunami is the occurrence of a very large earthquake that lasts for more than 20 seconds. If an area has been shaken by a very large earthquake, one should be on alert that shorelines located within the radius of the earthquake's epicentre, may be hit by a tsunami.
2. In the land locked Red Sea records higher salinity due to high evaporation. -Salinity is, however, very low in Black Sea due to enormous fresh water influx by rivers. -The average salinity of the Indian Ocean is 35 %.
3. Hence, lakes and rivers do experience gravitational pull, but since their area or mass of water is not much in comparison to large oceans and seas, so not much significant pull is experienced in lakes and rivers.
4. characteristics like temperature, salinity, density and the external forces like of the sun, moon and the winds influence the movement of ocean water. The horizontal and vertical motions are common in ocean water bodies.
Explanation:
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