Answer: C. where did the four 9/11 attacks take place?
Explanation: the answer states all of the places the planes landed
.
Answer: An algorithm
Explanation:
Algorithm could be described as a way of carrying out a process through following instructions strictly. It's a systematic way of going about a process.
The problem solving method that involves the systemic search is called An algorithm
Answer:
C.
Explanation:
In 1837, when Samuel Morse had an idea of making electric telegraph worked, he faced with a challenge to push forward the signal across long distance. They knew that sending legible signal across the continent would be difficult. So, Morse attached a relay to his device that will work like a relay horse, sending forward the signal by taking message from the exhausted partner and push it with renewed vigor.
So, the correct answer is option C.