It can be. As the present participle of the verb "to gasp" it can modify nouns.
Examples:
Firefighters found the smoke-filled subway car filled with gasping commuters.
Gasping onlookers watched as the huge crane fell from the roof and crashed into the street.
Well I'm not sure but in most comics its like GASP in uppercase and the character has a surprised face.
Yes, it is an adjective. It is the comparative form of the adjective dark.
The adjective is lightened
Speeding is an adjective.
An adjective
No, gasped can be a verb form or adjective (gasped breaths, gasped words). There is an adverb (gaspingly) formed from the present participle, gasping.
If quails are gasping, they may be thirsty or calling quietly to their mates.
Why is my yellow belly turtle gasping and squeaking
The interesting sentence can say "why" you were gasping for breath, or what happened while you were gasping. "As I was gasping for breath in the smoke-filled hallway, a burly firefighter threw me to the floor and pushed an oxygen mask over my face."
of Gasp
Agonal breathing is characterized by occasional gasping breaths.
To breath fast or sharply
hiccup
gasping
Yes
I gasped for air after being underwater for a long time.
Apnea or gasping