Fill in the blank with the correct preposition.
The Indian Leopard indulges__________ a long flight to catch it's prey.

in

The correct preposition to fill in the blank is in. The preposition in is used to indicate location or position, and it can also be used to indicate something that is being discussed or talked about. In this case, the Indian Leopard indulges in a long flight to catch its prey, which means that it takes a long flight to catch its prey.

The other options are incorrect.

• At is used to indicate a specific point or place.
• On is used to indicate location or position, but it is not the most appropriate preposition to use in this case.
• Over is used to indicate movement or placement above something.