Compared to a featureless earth, how would you expect the mariana trench, the deepest trench in the ocean, to affect the gravitational force in that location?

Mariana trench is the deepest trench in the world. Now there is a difference of gravitational force between that of the earth surface and the trench. The reason is that the trench depth is about 10.9 Km and the radius measured from the surface to the center of the Earth is about 6,371 km.

So the trench is more deeper then the surface of earth and the pull of gravity will be different due to that reason inside that region.

Explanation:

Now, we can just subtract the depth of the trench from the radius "r" given, we get:

6,371×10³-10.9×10³ m = 6360.1 km,

Now simplifying the numbers (gravitational constant times mass of earth divided by that radius (6360100 m) squared.

We will get 9.8473 m/s².

The value of gravitational force will be 9.8473 m/s² inside Mariana trench

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do