Answer : 2. "उत्तर-पश्चिमी मरुस्थलीय भाग"
Explanation :

1. Akal Wood Fossil Park is located in the north western desert natural landscape.

2. Wood Fossil Park is situated in the 'Marubhoomi National Park'.

3. It is also called Akal Wood Fossil Park.

4. It is situated in Jaisalmer district, Rajasthan.

5. It is also a biodiversity heritage site.