SSC MTS EXAM

Detailed explanation-1: -Oceans are very large marine bodies that dominate the earth’s surface and hold the largest ecosystems. They contain a rich diversity of living organisms. Ocean regions can be separated into four major zones: intertidal, pelagic, benthic and abyssal.

Detailed explanation-2: -biosphere, relatively thin life-supporting stratum of Earth’s surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Detailed explanation-3: -The portions or regions where organisms are found are collectively called the biosphere. Thus, it can also be said that the biosphere is the sum of all the ecosystems on Earth. The word biosphere came from the Greek “bios” that refers to “Life” and “sphaira” that refers to the Earth’s shape.

Detailed explanation-4: -It is said to be the largest ecosystem on the earth. They are divided into two types-marine ecosystems and freshwater ecosystems. The marine ecosystem is the largest aquatic ecosystem as it covers over seventy percent of the earth’s surface. More items