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:
The last solar eclipse was in june 8,1918
<span>Floods provided water for crops.
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Answer:
A. Northern plains
Explanation:
A bunch of history notes that i do not have time to type out.