Mark the odd one out (w.r.t. National Parks)

The least porous soil among the following is a

Assertion : In tropical rain forests. $O-$ horizon and $A-$ Horizon of soil profile are shallow and nutrient-poor.
Reason : Excessive growth of micro-organisms in the soil depletes its organic content

The presence of diversity at the junction of territories of two different habitats is known as

In-situ conservation of one horned Rhino is being done in