Question

question 27 of 30. which of the following is a scientific question? a. which led screen design is the most energy - efficient? b. does the led screen design violate a previous patent? c. which led screen design produces the most attractive images? d. what is the best price for an led screen design?

Explanation:

Scientific questions are testable and objective. Option A asks about energy efficiency, which is measurable and testable. Others involve subjective (C), legal (B), or economic (D) aspects.

Answer:

A. Which LED screen design is the most energy efficient?