The declension of a noun can always be recognized by the ending.

What is the predicate noun in the following sentence? my favorite flower is the rose.

On what political idea did president truman base the marshall plan? as economic aid increased in europe, the friendship of nations with the united states would increase. as peace throughout the world increased, the threat of another world war would decrease. as prosperity in europe increased, the threat of communism spreading would decrease. as the power of capitalism increased in europe, stalin's power in the soviet union would decrease.

Iknow why the cage bird sings, how does the autjor’s decision to include the underlined action impact the readers understanding