Question

which important indoor safety measure should be taken during a thunderstorm? lie on the floor. cover your head. go to the basement. move away from windows.

Explanation:

During a thunderstorm, windows can be damaged by flying debris or lightning-related surges, and proximity to them increases risk of injury from shattered glass or indirect lightning effects. The other options are either unnecessary (lying on floor, covering head indoors) or a measure that may not be accessible/required for all indoor spaces (going to a basement). Moving away from windows is a universal, critical indoor thunderstorm safety step.

Answer:

D. Move away from windows.