I think it is present perfect.
Answer:
The brown eyed children had already gone through the experiment and understood firsthand how hurtful it was to be called inferior.
Explanation:
Answer:
False
Explanation:
That is first person. Third person uses "he" "she" "they" etc.
Answer:
This whole section is about grass.
Explanation:
A child asked him what the grass was, and he couldn't answer, except to guess that grass must be the symbol or "flag" of our hopeful nature. Green is the color of hope. Or, it could be like God's handkerchief, just a little something to remember him by.