Answer:
I think Terrorism has been a challenge for the US because there have been some serious attacks that left many people dead.
Answer:
<u><em>Argo</em></u>
<u><em>Argo, the system of television cameras and sonars that helped find the Titanic, was named by Titanic expedition leader Robert Ballard for the mythical Greek vessel that carried Jason on his quest for the Golden Fleece. In 1985, Argo represented a new generation of exploration vehicles for ocean scientists</em></u>
<u><em>Sonar uses sound to detect objects underwater. As well as using sonar, Ballard searched for the Titanic's trail of debris. He estimated that it would be over 2km long. Ballard had just 12 days to find it, in an area of ocean five times the size of New York</em></u>
Explanation:
Hope this helps:)
Answer:
George Calcert died
Explanation:
The picture above is my gradpoint review
B, based on my knowledge of the root of the word.
