In each case, the wind-driven circulation is divided into gyres that stretch across the entire ocean: subtropical gyres extend from the equatorial current system to the maximum westerlies in a wind field near 50° latitude, and subpolar gyres extend poleward of the maximum westerlies. . Geography Chapter 5 Water Class 7 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers. Share 1. Overview Water Cycle: The process by which water continually changes its form and circulates between How to deliver more seamless sales and marketing presentations virtually; March 30, 2021. brings cold, dense, oxygen rich water from surface to deep. and the weather's effect on it. In this 7-9 day investigation, students are engaged in a variety of hands-on demonstrations and experiments that will help them understand thermohaline circulation in the ocean. The ocean floor was displaced by about 10 to 20 m and huge mass of ocean water filled the gap that was created by the displacement. 3 screen shares for 3 different teaching scenarios; April 6, 2021. slow velocity, 90% ocean water. The global circulation would be simple (and the weather boring) if the Earth did not rotate, the rotation was not tilted relative to the sun, and had no water. MCQ Type Extra Questions (1) The process by which water continually its form and circulates between oceans atmosphere and land called circulates between oceans, atmosphere and land is called Why do rivers drain into the ocean? Ocean general circulation models (OGCMs) are a particular kind of general circulation model to describe physical and thermodynamical processes in oceans. These notes comprise all the concepts covered in the chapter in a well-structured manner. The oceanic general circulation is defined as the horizontal space scale and time scale larger than mesoscale (of order 100 km and 6 months). April 7, 2021. The Indira Point in the Andaman and Nicobar Islands got submerged after the tsunami. Southern oscillation. density variations caused by temp and salinity variations. Studiestoday. deep ocean circulation. C.2. about water, its distribution, ocean circulation, tides, waves, ocean currents go through CBSE Class 7 Geography notes of Chapter 5 -Water. Wind-driven circulation. Ocean circulation is the large scale movement of sea waters in the ocean basins. NCERT Class 7 Geography Chapter 5: Air Completes Notes Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022) Get unlimited access to the best preparation resource for UGC : Get complete video lectures from top expert with unlimited validity : cover entire syllabus, expected topics, in full detail- anytime and anywhere & ask your doubts to top experts. 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