Sonar uses sound waves in order to detect and locate objects in the water. The speed and detectable range of sound waves are impacted by the medium they are travelling through. Ocean water, the medium that sonar travels through, includes characteristics such as temperature, density, and salinity. These elements affect the nature of the medium, and thus affect the sound waves used for sonar detection.
True. The crust of the Earth has some permanent magnetization, and the Earth's core generates its own magnetic field, sustaining the main part of the field we measure at the surface. So we could say that the Earth is, therefore, a "magnet."
A meteorites rock I believe so
Contagious patients should enter the office from where they were instructed to go by the people in the front office. If you’re not sure call the place for any questions before you go .
Answer:
B!
Explanation: hope this helps