Assertion(A): Continental drift caused survival of pouched mammals of Australia.
Reason(R): It was due to lack of competition from any other mammal.
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. Both (A) and (R) are false.
Subtopic:  Definition & Types of Evolution | Concept of Speciation |
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