Electromagnetic waves travel through space at a speed of ____. (1 point)
a. 3,000 kilometers per second
b. 30,000 kilometers per second
c. 300,000 kilometers per second
d. 3,000,000 kilometers per second
Electromagnetic waves travel through space at a speed of ____. (1 point)
a. 3,000 kilometers per second
b. 30,000 kilometers per second
c. 300,000 kilometers per second
d. 3,000,000 kilometers per second