Which of the following has/have shrunk immensely/dried up in the recent past due to human activities ? 1. Aral Sea 2. Black Sea 3. Lake Baikal Select the correct answer using the code given below :
- (a)1 only
- (b)2 and 3
- (c)2 only
- (d)1 and 3
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Official answer(a) 1 only