ECOLOGY
BIODIVERSITY AND ITS CONSERVATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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intertidal zone
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open ocean
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flood plain
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aphotic zone
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Detailed explanation-1: -The bottommost, or aphotic, zone is the region of perpetual darkness that lies beneath the photic zone and includes most of the ocean waters.
Detailed explanation-2: -The Disphotic Zone is found just below the Photic Zone and is known as the twilight layer. In this zone only a small amount of light penetrates the water.
Detailed explanation-3: -In the ocean, the aphotic zone is sometimes referred to as the dark ocean. Depending on how it is defined, the aphotic zone of the ocean begins between depths of about 200 m (660 ft) to 800 m (2, 600 ft) and extends to the ocean floor.
Detailed explanation-4: -Zones Based on Depth of Water Scientists refer to the vertical extent of ocean water as the water column. Two main zones based on depth of water are the photic zone and aphotic zone. The photic zone is the top 200 meters of water. The aphotic zone is water deeper than 200 meters.