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An ecosystem is best described as biotic and abiotic factors occupying a definite geographical area together with:
AOnly the rainfall received yearly
BOnly the producers present there
CTheir interactions with one another
DOnly the soil minerals present there
Answer & Solution
Correct answer: C. Their interactions with one another
1. An ecosystem is more than just a list of organisms or a single factor.
2. It is biotic and abiotic factors of a definite area plus their mutual interactions.
3. Options naming only one factor (producers, rainfall, minerals) miss the interaction component, so they are wrong.
4. The complete description is the factors and their interactions.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 4 "Environmental Management", p.47_
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