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.

Radar is often used to track moving airplanes or storms, but it can also be used to locate stationary objects buried underground.

The word "stationery" is used incorrectly in the sentence. It should be "stationary" instead.

The word "stationery" is used incorrectly in the sentence. The correct word that should be used is "stationary."

To understand why "stationary" is the correct word, let's break it down:

"Stationary" refers to something that is not moving or fixed in one place. In this context, it means that the objects underground, which can be located using radar, are not in motion.

On the other hand, "stationery" refers to writing materials, such as paper, pens, and envelopes.

To fix the sentence, we should replace "stationery" with "stationary":

"Radar is often used to track moving airplanes or storms, but it can also be used to locate stationary objects buried underground."