According to the process of isostatic adjustment,
a. thin sections of crustal material float higher than thicker slabs.
b. crustal slabs adjust very rarely.
c. thick sections of crustal material float higher than thinner slabs.
d. mountains are lowered as they become older.

The correct answer is C. thick sections of crustal material float higher than thinner slabs.

Explanation:

It is known that on the ocean floor are deposited most of the materials that are will be carried by different streams of water. The weight that is added to the area causes the ocean floor to sink by isostatic adjustment and there is a process called subsidence.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer