WHAT IS THIS ?? HELP ME !! ITS EASY

2

Explanation:

The paragraph never mentioned anything about World Heritage Site, so it's not 1. They never mentioned anything about any animal species, so it's not 3. And it never said that it was the most impressive lake, so it's not 4.

I hope this helps!

comfortable

explanation:

one type of the adjectives is predicate adjective. a predicate adjective is an adjective which follows a linking verb and modifies or refers back to the main subject of that linking verb.

it usually is used just before the noun it modies.

here in this example:

'penguins seem comfortable in the coolest habitats', comfortable is the predicate adjective which follows the linking verb 'seem' and modifies the noun.