Answer:
Radio-wave communications signals travel through the air in a straight line, reflect off of clouds or layers of the ionosphere, or are relayed by satellites in space. They are used in standard broadcast radio and television, shortwave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys.
Explanation:
Answer:
The American colonization society was established in the early nineteenth century with the goal of transporting african americans to africa.
Because the white an believed if they gave them a fire arm they would revolt against them.
Answer:
moverse de un lugar a otro
Explanation:
you can try to limit your time for other activities to make space for another one
