Question

Don Walsh and Jacques Piccard:

were the first men to walk on the moon
orbited the earth in a bathyscaph
explored the deepest known ocean trench
designed the Space Station Mir

Answer 1

they r explorer of marine policy specialist...they r American oceanographers...2 explorers US navy,lieutenant don walsh and jacques piccard became the first people to dive 11 km to the bottom of marine trench... hope it help u...