Answer:
The news is something that a journalist makes. There has to be a sort of tension when reading a piece of news, because if it wasn’t for tension, that I, not the news.
Explanation:
The journalist has a mission to find out the truth and to says it but the other thing is that he has to keep the power of telling the news.
If everything told is already known, when reading it it wouldn’t be news. If you say to the public that bad things are happening, but there are solutions for this, that is not news. The journalist has to decide what will be represented as news.
B. The United States built a series of defensive fortifications in the 1950's called the Iron Curtain.
The Iron Curtain referred to the satellite nations that Russia controlled that acted as buffer between Western Europe and Russia.
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Very early societies did not have a written language or even ways to efficienly preserve information, so we can reject the options "maps" and "written records".
As far as the other two options go - ice core samples and tree rings, both are correct! probably "ice core" samples are the better answer, since only fossilized tree rings would tell us about the very early societies.
