Is thought a concrete or abstract noun?

Central ideas are the most ideas in a text.

How to prevent onions from making you cry chill the onions in the refrigerator for 30 minutes before peeling or chopping them. sulfuric vapors move slower in the cold—think about how garbage smells worse during hot weather. leave the onion root intact until the last possible moment to prevent irritants from escaping into the air. the root contains the largest concentration of sulfuric compounds in an onion. chop or cut the onion with a sharp knife. fast, clean slicing puts less pressure on the onion tissue and minimizes the release of sulfuric compounds. a sharp knife also allows you to expedite your slicing and reduce your exposure to the onion fumes. open a window or light a scented candle close to your chopping station. the hot flame of a candle will attract tear-causing vapor and will reduce the amount of vapor circulating in the air. what can be done to these instructions to make them easier to read at a glance? deleting everything except the first sentences of each numbered step eliminating the numbers and using bullets using illustrations instead of text changing nothing

Select the correct text in the passage. which two lines in this excerpt from shakespeare's romeo and juliet foreshadow the tragic fate of romeo and juliet? friar laurence: so smile the heavens upon this holy act, that after hours with sorrow chide us not! romeo: amen, amen! but come what sorrow can, it cannot countervail the exchange of joy that one short minute gives me in her sight: do thou but close our hands with holy words, then love-devouring death do what he dare; it is enough i may but call her mine. friar laurence: these violent delights have violent ends and in their triumph die, like fire and powder, which as they kiss consume: the sweetest honey is loathsome in his own deliciousness and in the taste confounds the appetite: therefore love moderately; long love doth so; too swift arrives as tardy as too slow.