Marine Life and Deposits — Chapter Summary
ICSE · Class 11 · Geography
Summary of Marine Life and Deposits for ICSE Class 11 Geography. Part of the ICSE Class 11 Geography syllabus.
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Overview
Marine environment is the total area from the sea coast to the greatest depth of the sea. It contains a wide variety of flora and fauna and is divided into two principal realms: pelagic, the open ocean water mass, and benthic, the part of the ocean populated by organisms. Marine life is grouped into
Key Concepts
The marine environment is the total
The marine environment is the total area from the sea coast to the greatest depth of the sea. It supports a rich variety of living organisms and natur
Pelagic refers to the open ocean
Pelagic refers to the open ocean environment and includes the entire mass of water. It is divided into Neritic Province and Oceanic Province.
Benthic refers to that part
Benthic refers to that part of the ocean which is populated by organisms. It is divided into Littoral Zone and Deep Sea Zone.
This pelagic province has a depth
This pelagic province has a depth of 200 metres and is the most populated marine area. It has shallow depth, low salinity, less turbulent motion, and
This pelagic province is more than
This pelagic province is more than 200 metres deep. It has an upper lighted zone and a lower dark zone. The water is clear and has no terrestrial sedi
Learning Objectives
- To understand the two principal realms of the marine environment
- To distinguish between pelagic and benthic zones and their subdivisions
- To classify marine organisms into plankton, benthos, and nekton
- To study marine vegetation and its main types
- To explain the origin and types of marine deposits
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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