Breakdown of Ten region jest znany z wydobycia węgla.
być
to be
ten
this (m)
znany
known
z
from (+ Genitive)
Questions & Answers about Ten region jest znany z wydobycia węgla.
Why do we use the preposition z with znany, and what case does it require?
The adjective znany (known) pairs with the preposition z to mean "known for". This specific adjective-preposition combination always mandates the Genitive case. This is why the following word is the Genitive wydobycia rather than the Nominative wydobycie. In Polish, you are essentially "known from" something.
Why is the word węgla also in the Genitive case? Is it also controlled by znany z?
No, znany z only dictates the case of the noun immediately following it (wydobycia). The word węgla is in the Genitive case because it modifies the noun right before it. Just as English uses "of" to say "extraction of coal", Polish uses the Genitive case to link two nouns together.
The word wydobycia looks like a noun, but comes from a verb. How does this work?
The Nominative form is wydobycie (extraction), which is a verbal noun created from the verb wydobyć (to extract). Polish frequently creates these neuter nouns ending in -nie or -cie to express the act of doing a verb. Once formed, they decline for case exactly like standard neuter nouns.
What happens to the spelling of węgiel when it becomes węgla in the Genitive case?