Answer:
undersea trench
Step-by-step explanation:
Absolute value is the distance from zero
The highest mountain trench is |29028| or 29028 ft from zero
The lowest under sea trench is | -35840| of 35840 ft from zero
The highest absolute value is the undersea trench
Height always be positive .
Absolute value:-
[tex]\\ \sf\longmapsto |29028|=29028ft[/tex]
Absolute value:-
[tex]\\ \sf\longmapsto |-35840|=35840ft[/tex]