Some say Portuguese is harder than English

Jorden, mark and jord (swedish)

Potato for scale

Erde (or Welt), Land (or Feld/Wiese), Dreck (or Erde) in German

Same in french: Terre, terre, terre

*hears "earth, land and dirt" in Portuguese*
Yes?

Zemlja.zemlja.zemlja. (bosnian)

It's aarde/wereld, land (or grond in some cases), aarde/grond in dutch

If it weren't for the fact it said "Portuguese" I'd said it was Italian... or maybe even Latin.
Spanish: tierra, tierra, tierrra.

Tierra tierra y tierra (Spanish)

Same with Spanish. Tierra, tierra, and tierra

Yet, saying earth, earth and earth is also correct by definition.

Not as hard as "kuusi palaa"

As a portuguese girl I must admit our language is kind of hard :p the same word can have different meanings according to the sentence you´re using

Cute!