Marine Animals have a high chance of survival in the raining season
An adjective is a word used to qualify a noun or a pronoun.
It gives additional information about a subject.
Considering the definition of an adjective given above, and its roles in sentences, marine is used as an adjective in the sentence below:
Marine Animals have a high chance of survival in the raining season
In the sentence above, the adjective, "marine" describes the noun "animals" by letting us know the category of animals that is being discussed.