The correct answer is option 1, which states that only statement 1 is correct. Let`s dissect each statement to understand why this is the correct answer.

Statement 1: Snowline occurs at a higher altitude in the Eastern Himalayas than in the Western Himalayas.

This statement is correct. The snowline is the elevation above which permanent snow and ice can be found on a mountain. The Eastern Himalayas, which includes states like Arunachal Pradesh and Sikkim, have higher altitudes compared to the Western Himalayas, which include states like Himachal Pradesh and Uttarakhand. Due to the higher altitude, the snowline in the Eastern Himalayas is higher. Hence, statement 1 is true.

Statement 2: Mangrove forests in Lidia occur along the coastal areas of West Bengal and Odisha only.

This statement is not mentioned in the question, and therefore, it is not possible to determine its correctness or incorrectness based on the information given. We cannot conclude whether statement 2 is true or false based on the given options. Hence, statement 2 is not applicable to this question.

In summary, statement 1 is correct, but statement 2 is not mentioned in the question and cannot be determined. Therefore, the correct