THEY DON'T!
they go underwater
Adult gray whales can stay underwater for approximately 10 - 15 minutes.
sperm whales can stay underwater for 90 minutes
they use underwater echo sound location!
Whales are mammals, not fish, so they do not have gills for breathing underwater. Instead, they have lungs and need to come to the surface to breathe air.
i think yes
Yes, black whales do have blow holes. They keep them closed when they are underwater.
Orca whales make a odd sort of clicking noise underwater.
40 minutes
no
No, sorry there isn't.
mechanical