NCERT Solutions Class 11 Geography Chapter 14 Movements of Ocean Water have been provided below and is also available in Pdf for free download. The NCERT solutions for Class 11 Geography have been prepared as per the latest syllabus, NCERT books and examination pattern suggested in Class 11 by CBSE, NCERT and KVS. Questions given in NCERT book for Class 11 Geography are an important part of exams for Class 11 Geography and if answered properly can help you to get higher marks. Refer to more Chapter-wise answers for NCERT Class 11 Geography and also download more latest study material for all subjects. Chapter 14 Movements of Ocean Water is an important topic in Class 11, please refer to answers provided below to help you score better in exams
Chapter 14 Movements of Ocean Water Class 11 Geography NCERT Solutions
Class 11 Geography students should refer to the following NCERT questions with answers for Chapter 14 Movements of Ocean Water in Class 11. These NCERT Solutions with answers for Class 11 Geography will come in exams and help you to score good marks
Chapter 14 Movements of Ocean Water NCERT Solutions Class 11 Geography
NCERT Solutions for Class 11 Geography for chapter 14 Movements of Ocean Water
1. Multiple choice question
(i) Upward and downward movement of ocean water is known as the:
(a) tide
(b) current
(c) wave
(d) none of the above
Answer: (a) tide
(ii) Spring tides are caused:
(a) As result of the moon and the sun pulling the earth gravitationally in the same direction.
(b) As result of the moon and the sun pulling the earth gravitationally in the opposite direction.
(c) Indention in the coast line.
(d) None of the above.
Answer: (a) As result of the moon and the sun pulling the earth gravitationally in the same direction.
(iii) The distance between the earth and the moon is minimum when the moon is in:
(a) Aphelion
(b) Perigee
(c) Perihelion
(d) Apogee
Answer: (b) Perigee
(iv) The earth reaches its perihelion in:
(a) October
(b) September
(c) July
(d) January
Answer: (d) January
2. Answer the following questions in about 30 wor
(i) What are waves?
Answer: Ocean waves are oscillatory movements in water, manifested by an alternate rise and fall of the ocean/sea surface.
(ii) Where do waves in the ocean get their energy from?
Answer: Wind provides energy to the waves. Wind causes waves to travel in the ocean and the energy is released on shorelines. The size and force of waves depends upon three factors:
the velocity of the wind,
the duration of the wind and
the distance over which the wind can blows unhindered
(iii) What are tides?
Answer: Seawater is not stationary, but rises and falls of sea level, once or twice a day, mainly due to the attraction of the sun and the moon, is called tide.
(iv) How are tides caused?
Answer: The gravitational pull of moon and the sun are the major causes for the occurrence of tides on earth. Another factor is centrifugal force, which is the force that acts to counter balance the gravity.
(v) How are tides related to navigation?
Answer: Tides also help in making some of the rivers navigable for ocean-going vessels. The Port of Kolkata is a riverine port in the city of Kolkata, located around 203 kms from the sea and become important ports owing to the tidal nature of the mouths of the Hooghly River.
3. Answer the following questions in about 150 words
(i) How do currents affect the temperature? How does it affect the temperature of coastal areas in the N. W. Europe?
Answer: Oceans currents have far-reaching effect on the temperature. Western margins of the continents within the tropics are washed by cold currents, which do not cause much rainfall. Warm currents raise the temperature of the ocean water, whereas cold currents lead to fall of temperature. The west coasts of the continents are bordered by warm currents and enjoy distinct marine climate. Warm currents flow parallel to the east coasts of the continents in tropical and subtropical latitudes, which results in warm and rainy climates. North Atlantic and the Labrador Current decrease the temperature of the western Atlantic coast, while the warm Gulf Stream increases the temperature of the ocean water along the western European coast. The mixing of warm and cold currents favour the growth of planktons, which is the primary food for fish population. Therefore, such areas are the best fishing grounds of the world.
(ii) What are the causes of currents?
Answer: Large amounts of water in the ocean move in definite path of the surface. These are called ocean currents. The following factors cause ocean currents:
Prevailing Winds: The pushing action of prevailing winds makes the waters flow as they do. All ocean currents in the northern hemisphere move in the clockwise direction, while in the southern hemisphere anticlockwise direction.
Temperature Differences: The equatorial water becomes lighter on heating while water in polar areas becomes heavy due to cooling. To maintain the balance, water from equatorial areas moves towards the polar areas in the form of currents.
Landmasses: Mountain, plateau, and coastal landforms are also responsible for changing the course of a current.
Salinity Differences: Water having high salinity is heavier. As a result, light water with less salinity rushes towards the area of high salinity in the form of ocean currents.
Rotation of the Earth: Coriolis force becomes effective due to the earth’s rotation, which results in the formation of ocean currents. For example, Canaries Current is formed in the Atlantic Ocean due to the Coriolis force.
NCERT Solutions Class 11 Geography Chapter 1 Geography as a Discipline |
NCERT Solutions Class 11 Geography Chapter 2 The Origin and Evolution of the Earth |
NCERT Solutions Class 11 Geography Chapter 3 Interior of the Earth |
NCERT Solutions Class 11 Geography Chapter 4 Distribution of the Oceans and Continents |
NCERT Solutions Class 11 Geography Chapter 5 Minerals and Rocks |
NCERT Solutions Class 11 Geography Chapter 6 Geomorphic processes |
NCERT Solutions Class 11 Geography Chapter 7 Landforms and their Evolution |
NCERT Solutions Class 11 Geography Chapter 8 Composition and Structure of Atmosphere |
NCERT Solutions Class 11 Geography Chapter 9 Solar Radiation Heat Balance and Temperature |
NCERT Solutions Class 11 Geography Chapter 10 Atmospheric circulation and weather Systems |
NCERT Solutions Class 11 Geography Chapter 11 Water in the Atmosphere |
NCERT Solutions Class 11 Geography Chapter 12 World Climate and Climate Change |
NCERT Solutions Class 11 Geography Chapter 13 Water Oceans |
NCERT Solutions Class 11 Geography Chapter 14 Movements of Ocean Water |
NCERT Solutions Class 11 Geography Chapter 15 Life on the Earth |
NCERT Solutions Class 11 Geography Chapter 16 Biodiversity and Conservation |
NCERT Solutions Class 11 Geography Chapter 1 India Location |
NCERT Solutions Class 11 Geography Chapter 2 Structure and Physiography |
NCERT Solutions Class 11 Geography Chapter 3 Drainage System |
NCERT Solutions Class 11 Geography Chapter 4 Climate |
NCERT Solutions Class 11 Geography Chapter 5 Natural Vegetation |
NCERT Solutions Class 11 Geography Chapter 6 Soils |
NCERT Solutions Class 11 Geography Chapter 7 Natural Hazards and Disasters |
NCERT Solutions Class 11 Geography Chapter 1 Introduction to Maps |
NCERT Solutions Class 11 Geography Chapter 2 Map Scale |
NCERT Solutions Class 11 Geography Chapter 3 Latitude Longitude and Time |
NCERT Solutions Class 11 Geography Chapter 4 Map Projections |
NCERT Solutions Class 11 Geography Chapter 5 Topographical Maps |
NCERT Solutions Class 11 Geography Chapter 6 Introduction to Aerial Photographs |
NCERT Solutions Class 11 Geography Chapter 7 Introduction to Remote Sensing |
NCERT Solutions Class 11 Geography Chapter 8 Weather Instruments Maps and Charts |
NCERT Solutions Class 11 Geography Chapter 14 Movements of Ocean Water
The above provided NCERT Solutions Class 11 Geography Chapter 14 Movements of Ocean Water is available on our website www.studiestoday.com for free download in Pdf. You can read the solutions to all questions given in your Class 11 Geography textbook online or you can easily download them in pdf. The answers to each question in Chapter 14 Movements of Ocean Water of Geography Class 11 has been designed based on the latest syllabus released for the current year. We have also provided detailed explanations for all difficult topics in Chapter 14 Movements of Ocean Water Class 11 chapter of Geography so that it can be easier for students to understand all answers. These solutions of Chapter 14 Movements of Ocean Water NCERT Questions given in your textbook for Class 11 Geography have been designed to help students understand the difficult topics of Geography in an easy manner. These will also help to build a strong foundation in the Geography. There is a combination of theoretical and practical questions relating to all chapters in Geography to check the overall learning of the students of Class 11.
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