At the equator, there is upwelling in winter due to north and south equatorial currents and this causes the generation of equatorial counter current. Pacific ocean currents phytoplankton and fishing pmf ias. Counter equatorial currents noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial currents of the atlantic, pacific, and indian oceans. The broad 5000 km westwardflowing currents north and south equatorial currents are separated by a comparatively narrow eastwardflowing countercurrent the equatorial counter current. The current of atlantic ocean is a west wind drift. Due to the convergence of a large mass of water from the equatorial currents in the western pacific near indonesia and australia, there is piling up water due to which the sea level rises by a few centimetres. Book translation in hindi, english, sanskrit and urdu also available. Jun 27, 2018 equatorial current an oceanic current which flows in an eastwest direction in the equatorial regions of all the oceans. As running water in oceans and rivers and in lakes, ice in glaciers, underground water and the water vapour in atmosphere, all comprise the hydrosphere. Here we have brought ncert book solutions for class 6 sanskrit subject for you students in this site hindi agalsam.
Equatorial counter current is a significant ocean current in the pacific and indian oceans that flows westtoeast at approximately five degrees north. This difference in level makes the counter equatorial current flow eastword. Discussions test 6 hope you enjoyed solving the sixth test of our 2016 test series. Three factors aid the formation of counter equatorial current. Jul 10, 2018 what explains the eastward flow of the equatorial counter current. An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the coriolis effect, breaking waves, cabbeling, and temperature and salinity differences. Mindanao current mc, the kuroshio, the north equa seas kashino et al. What explains the eastward flow of the equatorial counter current. Detailed explanations, analysis, and citation info for every important quote on litcharts. Equatorial counter current a shallow eastward flowing current found in the atlantic, indian, and pacific oceans humboldt current a cold, lowsalinity eastern boundary current that flows north along the western coast of south america from southern chile to northern peru. Mcq questions for class 11 geography chapter 14 movements. What explains the eastward flow of the equatorial counter. Check the below ncert mcq questions for class 11 geography chapter 14 movements of ocean water with answers pdf free download.
Pacific north equatorial counter current necc, an eastward surface current that flows halfway around the earth counter to the prevailing winds. From where you can get pdf of each chapter of ncert textbooks if needed. West wind drift flows from west to east in the zone of 400500s latitude under the influence of westerlies. Class 11 geography ncert solutions chapter 14 movements of. Five chapters explicitly study what i consider to be the central theme of the book. North equatorial current it is a significant pacific and the atlantic ocean current that flows from east to west. Ocean currents are streams of water flowing constantly. They can flow for thousands of miles and are found in all the major oceans of the world.
As a result, in equatorial regions the seasurface slopes up towards. Books of all the subjects for classes 1 to 12 are available for download. Oct 01, 2017 it is an eastward flowing current found in the atlantic, indian and pacific oceans. Ocean currents are created by wind, water temperature, salt content, and the gravity of the moon. Download upsc prelims 2015 question paper pdf in high res. And this creates a counter equatorial current which flows between the north equatorial current and the south equatorial current in westeast direction. It is also called as north equatorial counter current. The north equatorial current flows westwards with a compensating equatorial counter current running in the opposite direction. At the surface, the eastward necc is located between about 3n and 10n, just to the north of the south equatorial currents. The easterly equatorial counter current between about 4 0 and 10 0 n may be explained as follows, the overall effect of the trade winds is to drive water towards the west, hut the flow is blocked by the land masses along the western boundaries. There are two equatorial current flowing from east to west the north ec and south ec.
Counter equatorial currents noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial. East flowing current between north and south equatorial currents. Telangana scert class 9 social studies chapter 3 hydrosphere. Conventional and conceptual question which is easily available in commonly recommended books.
More often called the north equatorial countercurrent, this current flows westtoeast at about 310n in the atlantic, indian ocean and pacific basins, between the north equatorial current and the south equatorial current. Due to the greater expanse of the pacific and the absence of an obstructing land mass the volume of water is very much greater than that of the atlantic equatorial current. Warm currents flow from equatorial regions towards the polar regions and hence have a higher surface temperature. The atlantic equatorial upwelling is fed by the south atlantic cell.
This countercurrent replaces the water removed from the eastern side of the ocean by the north equatorial and south equatorial currents. Equatorial countercurrent, current phenomenon noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial currents of the atlantic, pacific, and indian oceans. Figures 46, which is the strongest equatorial pacific current, reaching speeds of about 1 m s. This creates an equatorial countercurrent between the north pacific and south pacific current. At 7e, the euc axis started turning toward the equator, and an isolated euc core was observed at 143e and 200. Equatorial counter current due to the convergence of a large mass of water from the equatorial currents in the western pacific near indonesia and australia, there is piling up water due to which the sea level rises by a few centimetres. The equatorial counter current flows east between the north equatorial and the south equatorial currents, which both flow west.
Ncert solutions class 6 sanskrit chapter 7 backward. Counter equatorial current flows between north and south equatorial current in the opposite direction. The equatorial counter current, which flows towards the east, is a partial return of water carried westward by the north and south equatorial currents. Which of the following is not a part of the north atlantic class 11. Ncert books download pdf for cbse class 1 to 12 latest. The atlantic equatorial countercurrent is strongest off the coast of ghana africa, where it is known as the guinea current. Msbshse class 8 social science geography chapter 5. Ncert solutions for class 12 physics chapter 3 current electricity is the best study material that helps you score more marks in the board exams of class 12 physics and also in any entrance exams. Geography ncert books plus current events on environmental issues 7. This is because in this area due to convergence, the water is raised. Kuroshio or japan current flows from taiwan to bering strait. The pacific equatorial countercurrent is very strong and is definable yearround.
The equatorial counter current is an eastward flowing, winddriven current which extends to depths of 100150m in the atlantic, indian, and pacific oceans. The time between the high tide and low tide, when the water level is falling, is called. The atlantic ocean is the second largest of the worlds oceans, with an area of about 106,460,000 square kilometers. The euc is found within the very strong equatorial thermocline just below the westward sec figures 4. Now, it is said that piling up of waters in the area near brazil, due to convergence of the two equatorial currents give rise to the equatorial counter current. What explains the eastward flow of the equatorial countercurrent. Mcq questions for class 11 geography with answers were prepared based on the latest exam pattern. Download ncert solutions for class 11 all subjects, get free class 11 all subjects solutions for questions for all chapters in class 11 all subjects solved by best teachers as per latest ncert cbse book syllabus and guidelines. The counter currents result from balancing the westward flow of water in each ocean by the north and south equatorial currents. In fact, the equatorial counter current is a downslope current between the two upsloping currents i. Atlantic ocean currents equatorial, gulf stream and other. Download ncert books and ncert exemplar in pdf or e book epub free. Counter equatorial current is caused due to accumulation of water in the western parts which disturb the surface level. Equatorial counter current is a current phenomenon noted near the equator.
The equatorial undercurrent and its origin in the region. Download upsc ias, civil services prelim 2015 solved exam. Ncert solution class 11 geography movements of ocean water. The easterly equatorial counter current between about 4 0 and 10 0 n may be explained as follows. Mar 01, 2021 telanagana state board class 9 social studies studies chapter 3 hydrosphere question and answers solution by experts. Located at the crossroads of the equatorial counter current and the colder humbolt current, the waters surrounding the island are rich with nutrients that attract whales, sharks, dolphins, sea lions and numerous other big animals. These flow along the east of madagascar and east of mozambique respectively to converge at the cape of agulhas. The necc is not to be confused with the equatorial undercurrent that flows eastward along the equator at depths. This raises the level of western pacific near indonesia and australia ocean by few centimeters. Equatorial countercurrent ocean current britannica. Download upsc ias, civil services prelim 2015 solved. Lying primarily between latitude 3 and 10 n, the countercurrents shift south during the northern winter and north during the summer.
Now, it is said that piling up of waters in the area near brazil, due to convergence of the two equatorial currents give rise to the equatorial. Mcq questions for class 11 geography chapter 14 movements of. The purpose of this page of ours is to make ncert difficult questions accessible to the students. The countercurrent of the indian ocean flows only during the northern winter and only south.
The northern boundary of the necc, when the necc is present, is the north equatorial current. Pacific equatorial countercurrent ocean current britannica. If you have any queries regarding cbse class 11 geography movements of ocean water mcqs multiple choice questions with answers, drop a comment below and we will get back to you soon. Curiosity notwithstanding, we study these equatori al ocean circulation features because they are fundamental to the earths climate system and its vari ations. You can also check video solutions of ncert books as well.
Fortunately for divers, the diversity of its marine life is just as exciting. Pacific north equatorial current it is the major eastward moving. The currents in the atlantic ocean includes gulf stream, canary current, north atlantic drift,south atlantic drift, north equatorial current, south equatorial current. An ocean current is a continuous movement of ocean water from one place to another. The modeling of the north equatorial countercurrent in the. Other articles where pacific equatorial countercurrent is discussed. It covers approximately 20 percent of the earths surface and about 29 percent of its water surface area.
The counter current is a very shallow current which is confined to the surface layer above the discontinuity. Warm cold 1 north equatorial current in the atlantic ocean 2 south. The south equatorial current splits into two branches by the madagascar island. Physical geography gc leong, ncert flashcards quizlet. Improve your learning class 9 social studies hydrosphere telangana state board solution. Upsc cse 2015 prelims official answer key and disputed. Tides occur in the oceans and seas due to which among the following. It is found in between the north equatorial and south equatorial currents at about 310 0 northern latitudes. The counter currents shift south during the northern winter and north during the summer. Class 11 geography chapter 14 ncert textbook questions solved. This counter current, on the eastern side of the atlantic merges.
Schematic of the normal condition of the coupled atmosphereocean system in the tropical pacific during boreal winter. The eastward equatorial undercurrent euc is below the surface along the equator. Instant downloads of all 1426 litchart pdfs including life of pi. Depth contours, shoreline configurations, and interactions with other currents influence a current s direction and strength. The current s direction and speed depend on the shoreline and the ocean floor. The equatorial counter current flows east along the equator. On this page, please share your doubts to seek clarifications, or to point out any mistakes in the comment box regarding the first test. The pacific euc was shown to originate at e, where it featured an isolated current core with a maximum velocity of 510 cms at 1n and 200. Give an account of ocean currents class 11 social science cbse.
More than 71 percent of the earth is covered with water and 29 percent is with land. We hope the given ncert mcq questions for class 11 geography chapter 14 movements of ocean water with answers pdf free download will help you. Factual questions are generally from the books, while analytical questions are based on the current affairs asked directly from the issues in the news or questions which require the application of textbook basics. The timeaveraged subsurface flows are dominated by the eastward equatorial undercurrent euc. Depending upon their temperature, ocean currents can be classified into warm currents and cold currents. North equatorial currents flow from the western coast of mexico to the philippines towards the west. Henceforth this current is known as agulhas current. Students can get a detailed explanation of answers for all questions included in ch 3 current electricity concept by the ncert solutions of 12th physics. Apr, 2016 equatorial counter current is acurrent phenomenon noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial currents of the atlantic, pacific, and indian oceans.
In between the two, there flows a equatorial counter current in the opposite direction, i. Comprehensive self study plan for physical geography ias. Teach your students to analyze literature like litcharts does. Jan 30, 2021 we hope the given ncert mcq questions for class 11 geography chapter 14 movements of ocean water with answers pdf free download will help you. Equatorial counter current is acurrent phenomenon noted near the equator, an eastward flow of oceanic water in opposition to and flanked by the westward equatorial currents of the atlantic, pacific, and indian oceans.
865 1028 1411 597 608 1221 213 160 507 1090 265 518 1175 1304 443 1376 262 761 1049 1004 1237 34 583 538 985 1523 308 664 1105 1432 878 1157 1438 586 566 1003 1290 715