Question

The littoral zone represents the area between which two levels?

• A. A. Upper and lower light levels
• B. B. Upper and lower tide levels
• C. C. Upper and lower temperature levels
• D. D. Upper and lower pressure levels

Answer 1

Answer:

B. B. Upper and lower tide levels

• The shape of the benthic zone is roughly the form of an inverted hat. The upper most portion is called the, supra littoral zone, comprising the beach down to the edge of the ocean.

• Beyond this is the littoral zone which represents the area between the upper and lower tide levels and is, therefore, also known as intertidal zone. Littoral zone is the shore of the ocean.

• Next to this is the sublittoral or continental shelf which extends from the littoral zone to the beginning of the continental slope. The continental shelf is the underwater extension of the continent and extends to a depth of 125 to 200 metres.

• After the continental shelf, a rapid descent occurs and this is called the continental slope.