Aquatic ecosystem refers to living and non living parts of the water body Consider the following sta...........

Environment and Ecology Concept of Ecosystems

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Aquatic ecosystem refers to living and non-living parts of the water body, Consider the following statements:

1. Marine ecosystem covers more than 60% of the earth's surface and conatain greater than 85% of the planet's water.

2. Sodium and chlorine are in huge amounts of the dissolved materials in sea water.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. Unlike external factors, internal factors are controlled, for example, decomposition, root competition, shading, disturbance, succession, and the types of species present. Ecosystems are dynamic entities.