The correct matches are Vajrai Waterfall- Urmodi river (Maharashtra), Barehipani Falls- Budhabalanga River (Odisha), Dhuandhar Falls- Narmada (Madhya Pradesh), Kunchikal Falls- Varahi river (Karnataka).
The main reason of the dispersed settlement are Mountainous or heavy forested area, Poor soil fertility, Adverse climatic region, Less availability of arable land.
Jackfruit is one of the largest producers of jackfruit in the world. This sleepy coastal taluk in Cuddalore district of Tamil Nadu is the heaven of jackfruit.