Answer:
Primary sources provide a first-hand account of an event or time period and are considered to be authoritative. They represent original thinking, reports on discoveries or events, or they can share new information.
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Secondary sources involve analysis, synthesis, interpretation, or evaluation of primary sources.
His assassination led to an outpouring of anger among Black Americans, as well as a period of national mourning that helped speed the way for an equal housing bill that would be the last significant legislative achievement of the civil rights era.
Answer:
<u>1</u><u>)</u><u>Amplitude</u>
<u>2</u><u>)</u><u>Modulation</u>
<u>3</u><u>)</u><u>Frequency</u><u> </u>
<u>4</u><u>)</u><u>Modulation</u>
