Question

Josie is making a chart to know to show some of the ways electromagnetic waves can be used. Which of the following should she NOT include in her chart.

A. A radar is used by a satellite to map the ocean floor
B. A telescope uses gammas rays to detect distant galaxies
C. A battery is used to store electricity from a wind generator
D. A navigation system uses radio waves to determine position

Answer 1

Answer: B. A telescope uses gamma rays to detect distant galaxies.

Explanation: A telescope does NOT use gamma rays. (also it was right)