Tamarix-Poplar Forest is a dense thicket of Tamarix spp. With varying number of poplar trees are distributed on fresh silt alluvium of the riverain tract of the Indus between Muzaffargarh and Hyderabad with isolated occurrences as far north as _________
Correct answer: D
Explanation
Tamarix-Poplar forests are found along the Indus River. The riverain tract extends northward to Gilgit, which is further north than Muzaffargarh and Hyderabad.