This line from the passage<u> "Signals, which travel in straight lines, could not bend around Earth to reach a destination far away." </u>supports the claim that before communication satellites existed, people could only send signals over short distances
Explanation:
The author in the passage mentions that before communication satellite people used to send message through signal(like a radio signal,telegram signal etc) but the main constrain of sending the message through a signal was that the signal travel in a straight line and it cannot be bend as per the earths curvature.So,it was not possible to send signals at distance place .
Lets consider a person sitting in Singapore cannot send signal to the person in America the basic reason for this is the earths curvature and the straight line pattern of signal transmission
So by using the signal technology one can send message to people residing in same cities or state.Long Distance communication was not possible through signal transmission.
Answer:
Today, currency is a mixture of coins and paper money. But it wasn't always that way. People used a lot of unusual things for money before they had metal coins and paper bills (don't start a sentence with before). For example, in one part of the world, people used (get rid of a ) sharks' teeth for money. In some places, brightly colored feathers and rare seashells were money. People in one area even used the hair from elephants' tails for money.
Answer:
I missed hanging out with my friends because I had to study.
I had to miss an event because I was looking after someone younger.
Explanation:
The answer is C. On edge.
Once forged,loyalty is a powerful opponent for even bucks natural instincts
Just took the rest on edge :)