How can you direct the fired proton's path downward?
a.
place an electron above the original path
c.
place a proton below the original path
b.
place a proton above the original path
d.
place a proton directly on the original path

B. Place a proton above the original path

Explanation:

Like charges would repel one another. Unlike charges would attract.

When the proton is placed above the original path, it repels the fired proton and thereby goes downward.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers