Kennedy's reference to "our forebears" (line 4) serves mainly to

Describe details on how the area or image looks like.

Jane has 3 applesshe gives away 23 - 2 = 1jane has 1 apple lefthope this

It is good, unless you eat a lot of it. it contains sugar.

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".