1.4 Additional Information CMS is committed to maintaining the integrity and security of health care data in accordance with applicable laws and regulations. Disclosure of Medicare Beneficiary eligibility data is restricted under the provisions of the Privacy Act of 1974 and HIPAA.
horizon-the line at which the sky and Earth appear to meet. apparent horizon, sensible horizon, visible horizon, skyline. linear perspective, perspective-the appearance of things relative to one another as determined by their distance from the viewer.
One way is by GROUND WAVES and the other is by SKY WAVES. Ground waves are radio waves that travel near the surface of the Earth (surface and space waves). Sky waves are radio waves that are reflected back to Earth from the ionosphere. Figure 2-11.