A scientist who is a space explorer requires what for extended flights?
preserved food salt and water. hydration a hydraulic system useless heavy objects short-lived food hydrate their cells perishable food
A B C D E F G H
An astronaut is a scientist who is a space explorer.
A scientist who is a space explorer requires preserved food for extended flights.
A scientist who is a space explorer requires what for extended flights? (A) preserved food (B) salt and water. (C) hydration (D) a hydraulic system (E) useless heavy objects (F) short-lived food (G) hydrate their cells (H) perishable food