The Navajo are the second largest tribe in the U.S. and they have the largest reservation stretching across Colorado, Utah, New Mexico and Arizona with over 25,000 square miles. They were also among the largest group of Indians to migrate to Los Angeles in the 1950s and 60s.
The ionosphere is a shell of electrons and electrically charged atoms and molecules that surrounds the Earth, stretching from a height of about 50 km (31 mi) to more than 1,000 km (620 mi).
What is left is an electrically charged atom or ion, carrying a positive charge, and the process is known as ionization.. When such processes occur in air, they produce there free ions and electrons, which can move and carry an electric current, something neutral atoms cannot do.hat is left is an electrically charged atom or ion, carrying a positive charge, and the process is known as ionization.. When such processes occur in air, they produce there free ions and electrons, which can move and carry an electric current, something neutral atoms cannot do.