So is the boa constrictor omnivorous or carnivorous

Boa constrictor is a carnivore (meat-eater).

Explanation: While they are young, boa constrictors eat smaller prey, like rats, mice and squirrels.

Boa constrictor is a carnivore (meat-eater).

Explanation:

they mainly eat rodents birds and sometimes other reptiles.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.