Answer:
Difficulty
Explanation:
Space exploration was the last thing the world could have thought of dabbing into because the idea of moving away from the earth and flying in the sky wasn't even an easy one for man, hence the difficulty attached with going into other planets was a big success.
Many trials were made before the eventual success experienced, this many difficulties man overcame is what is meant by barrier in this sense.
Answer:
what is the question for the essay?
Explanation:
I believe that the answer to the question provided above is that Gandhi has made Snow realize the he was right. And it changed his perspective of him.
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