uma

• Num

  feminine of um

• Article
• Pron

das

Contraction of de as (“of/from the (feminine plural)”): feminine plural of do

principais

plural of principal

causas

• Noun

  plural of causa

• Verb

do

Contraction of de o (“of the, from the, -'s (masculine singular)”).

progresso

progress (a moving forward)

da

• Contraction

  Contraction of de a (“of/from the (feminine singular)”): feminine singular of do

• Verb

pobreza

1. poverty (quality or state of being poor)
2. a lack; a deficiency