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Subjects

Geography

Mapping of the ocean floor

महासागर तल का मानचित्रण

In this Class 11 Geography topic from “Distribution of Oceans and Continents,” students learn how the ocean floor is mapped and interpreted. They explore major features such as continental shelves, slopes, deep-sea plains, mid-ocean ridges, trenches and seamounts, and understand how soundings, sonar and bathymetric maps reveal underwater relief. The topic also helps connect ocean-floor patterns with plate boundaries, seafloor spreading and the changing distribution of continents and oceans.

TOPIC PRACTICE

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Up to 25 questions from this page. Select your focus, then start.

25 questions

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Medium · Level 6
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  1. It is the study of ocean depth and floor relief
  2. It is only counting seabirds
  3. It is the study of atmospheric layers
  4. It is the study of river scripts
Medium · Level 6
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  1. Colours and symbols may be interpreted wrongly
  2. Seawater may disappear
  3. Ships may stop automatically
  4. Mountains always become trenches
Medium · Level 6
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  1. Due to measurement error or data generalisation
  2. Because oceans are fake
  3. Because maps are always poems
  4. Because depth never changes
Medium · Level 6
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  1. Sea-floor spreading and plate tectonics
  2. Only coastal tourism
  3. Taste of seawater
  4. Reproduction rate of fish
Medium · Level 6
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  1. Mid-oceanic ridge
  2. Sea beach sand
  3. Coastal market
  4. River bend
Medium · Level 6
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  1. Survey coverage and data availability vary
  2. All oceans are equally deep
  3. Maps are made only for land
  4. There are no features on the sea floor
Medium · Level 6
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  1. Depth below sea level
  2. Error of the map
  3. Rainfall on the coast
  4. Speed of ship
Medium · Level 6
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  1. It helps identify possible mineral energy and sedimentary areas
  2. It immediately makes the sea fresh
  3. It tells the colour of air
  4. It only helps in writing poetry
Medium · Level 6
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  1. On the basis of depth relief and bottom nature
  2. Only on the basis of city language
  3. Only on the basis of ship decoration
  4. Only on the basis of ocean name
Medium · Level 6
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  1. Broad structure of deep ocean parts
  2. Number of coastal shops
  3. Amount of dust in air
  4. Farming along rivers
Medium · Level 6
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  1. A submerged elevation on the sea floor
  2. A dry river in the ocean
  3. A desert on the coast
  4. Complete absence of ocean
Medium · Level 6
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  1. It shows safe ship movement and depth requirement
  2. It turns the harbour into a forest
  3. It removes ocean salinity
  4. It keeps clouds in the harbour
Medium · Level 6
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  1. Seamount chain and hydrothermal sources
  2. Coastal bus stand
  3. Fields along a river
  4. Colour of a boat on sea surface
Medium · Level 6
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  1. Because relief remains hidden below the water surface
  2. Because the sea has no depth
  3. Because all features are identical
  4. Because the surface is always land
Medium · Level 6
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  1. Relief can affect deep-water pathways and barriers
  2. Relief ends every current
  3. Relief only changes coastal language
  4. Relief has no relation with currents
Medium · Level 6
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  1. Identification of shelf slope rise and abyssal plain
  2. Identifying a poet's birth date
  3. Counting political parties
  4. Writing alphabets of languages
Medium · Level 6
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  1. Continental slope
  2. Coastal market
  3. River source
  4. Marine cloud
Medium · Level 6
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  1. To improve accuracy and understand change or error
  2. To declare the sea as land
  3. To name fish
  4. To remove scale from the map
Medium · Level 6
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  1. Isobath equal depth
  2. Isobar equal depth
  3. Isotherm equal depth
  4. Latitude equal depth
Medium · Level 6
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  1. Relief depth and habitat zones
  2. Colours and names of ships
  3. Songs and stories of the sea
  4. Only political boundaries of coasts
Medium · Level 6
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  1. Where data is limited or dangerous slopes and obstacles exist
  2. Where the map has a title
  3. Where the ocean name is written
  4. Where people merely live on the coast
Medium · Level 6
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  1. It measures and shows the hidden topography beneath the sea
  2. It only counts waves on the sea surface
  3. It only shows capitals of countries
  4. It is a method of making seawater fresh
Medium · Level 6
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  1. Depth values at successive distances
  2. List of seabirds
  3. Market prices on coast
  4. Colours of ships
Medium · Level 6
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  1. Large relief features below such as seamounts or depressions
  2. Number of schools on the coast
  3. Taste of seawater
  4. Name of the ship captain
Medium · Level 6
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  1. Identifying depth slope and relief from maps
  2. Making poetic rhymes
  3. Writing political speeches
  4. Identifying chemical taste

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