What is the normal frequency for humans

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?