Jason hypothesized that exercise would result
in an increased level of carbon dioxide in his
exhaled breath. what was the assumption
underlying jason's hypothesis?

That his body would be using more oxygen during his exercise.

Mabey a person hope this hels

The whale was a missile blasting from beneath the surface.  2.) a majestic whale leapt skyward before diving back into the sea.    these are both figurative language. this is so because the whale in sentence "1" was not actually a missile, nor was it actually blasting. now, for sentence "2", a whale can not actually "leap".