The simple answer is too much sun will kill anything. Guppies like to be kept at around 68F to 75F. If their water gets over 85F for too long then they could well get very sick and die.
they should mollies arnt that aggresive but if the guppies are small enough it is possible the mollies will eat them but its not likely
NO you should never have chlorine in with your guppy it could hurt the fish
Fries (the term for baby guppies), are eaten by older guppies, but guppies are eaten by fish like tuna.
Only guppies breed with guppies naturally.
What are guppies
No, guppies are fish.
Guppies do not migrate.
Guppies are guppies are guppies. Tiger just describes their colouring/markings. They are the same in temperament as any other guppy.
Guppies are compatible with Bristlenose catfish, the bristlenose being one of a few catfish that can live with guppies because of the guppies' water.
The plural of guppy is guppies. The plural possessive is guppies'.
Guppies phylum is Chordata
Guppies do not precipitate. Rain does.