Maya angelou wrote i know why the caged bird sings about her early years. which word in the sentence is a preposition? a. about b. wrote c. years d. why

Which statement best describes the development of ideas in "sonnet 91"? the quatrains build ideas off of one another, and the couplet conveys a new idea. the quatrains contradict one another, and the couplet resolves their disagreement. the couplet agrees with the idea in the first quatrain but contradicts the others. the couplet builds off of the idea of the third quatrain but contradicts the others.

Que língua é essa? que raça e país usa esse idioma?

What would be the mass of an atom with 8 protons and 8 neutrons? a) 16 amu b) 8 amu c) 64 amu