Assertion (A): It is convenient to divide the global ecosystem into some basic categories.
Reason (R): Global ecosystem is too big to study at once.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A)
2. Both (A) and (R) are True but (R) is not the correct explanation of (A)
3. (A) is True but (R) is False
4. (A) is False but (R) is True
Subtopic:  Introduction |
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Level 1: 80%+
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