Reaction of hydrazine with ethanal ​

It produces a hydrazone in which the carbon is attached with the nitrogen atom with the means of a double bond.

Answer most life would not exist;

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".