(a) Mariana trench (Challenger deep)
(b) Galathea deep
(c) Bartholomew deep
(d) Mindanao deep
Submitted By: Syed Bilawal Shah (Sain)
(a) Mariana trench (Challenger deep)
(b) Galathea deep
(c) Bartholomew deep
(d) Mindanao deep
Submitted By: Syed Bilawal Shah (Sain)