Fix the one word that is used incorrectly,
radar is often used to track moving airplanes or storms, but it can also be used to
locate stationery objects buried underground.

stationary not stationery

Explanation:

Radar is often used to track moving airplanes or storms, but it can also be used to

locate stationery objects buried underground.

no

answer:

a. "there, said he, there is something for you."

explanation:

"said he" should not have been part of what is in the dialogue.