Chapter 22 of 33
Revision Notes
Marine Life and Deposits — Revision Notes
ICSE · Class 11 · Geography
Marine Life and Deposits revision notes for ICSE Class 11 Geography: 4 topics in quick points. Part of the ICSE Class 11 Geography syllabus.
65 questions38 flashcards5 concepts
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Key Topics to Revise
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1. Marine Environment and Major Realms
- The total area from the sea coast to the greatest depth of the sea is known as the marine environment.
- Marine environment has a large variety of flora and fauna.
- The marine environment is divided into two principal realms: pelagic and benthic.
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2. Pelagic Provinces
- Neritic Province has a depth of 200 metres and is the most populated marine area.
- Neritic Province has shallow depth, low salinity, less turbulent motion, and more plant nutrients.
- Neritic Province receives most of the sunlight and is the natural habitat of fish.
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3. Benthic Zones
- The benthic realm is divided into Littoral Zone and Deep Sea Zone.
- Littoral Zone is characterised by high and low tide levels.
- Littoral Zone has plenty of animal food.
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4. Modes of Marine Life
- Marine plants and animals are classified into three categories: plankton, benthos, and nekton.
- Plankton are minute plant and animal organisms that float or drift in ocean water.
- Phytoplankton are plant plankton.
Get complete notes with diagrams and examples
Full NotesKey Concepts
The marine environment is the totalPelagic refers to the open oceanBenthic refers to that partThis pelagic province has a depthThis pelagic province is more than
Frequently Asked Questions
What are the important topics in Marine Life and Deposits for ICSE Class 11 Geography?
Key topics in Marine Life and Deposits include Marine Environment and Major Realms, Pelagic Provinces, Benthic Zones, Modes of Marine Life. Study these first, then practise questions on each for Class 11 exams.
How should I revise Marine Life and Deposits for Class 11 exams?
Learn the core ideas first, then work through the 65 practice questions on Marine Life and Deposits. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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