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The two major types of ecosystems are terrestrial and:
ATundra
BAquatic
CMarine
DDesert
Answer & Solution
Correct answer: B. Aquatic
1. Terrestrial ones are classed into biomes.
2. The other type is aquatic.
3. Aquatic splits into marine and freshwater.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 15, Life on the Earth._
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