Answer: Yes with possible slight variation A main idea is more general, while a concept is more specific. For example in an essay about child labour you could say the main concept is child labor, but the main idea is how to combat child labor.
Explanation:
Answer: category-specific deficit
Jerome probably has a category-specific deficit.
Answer:
There could be several reasons but having seen the poem would provide a clearer answer.
Explanation:
They could use this phrase as an attempt of creating a concise understanding that the astronomer was qualified or learn'd from. It could be a use of imager or even personification. If the poem was posted, I would be able to answer it better.
Answer:
his friends are crazy over protective of their son
Explanation: