Breakdown of Il s'agit de remplacer l'énergie fossile et nucléaire par des options écologiques.
et
and
des
some (plural indefinite)
l'énergie
the energy (f)
l'option
the option (f)
Questions & Answers about Il s'agit de remplacer l'énergie fossile et nucléaire par des options écologiques.
Why do we use par instead of avec after remplacer?
In French, the verb remplacer (to replace) is followed by the preposition par to introduce the replacement. English speakers are often tempted to use avec because of the English word 'with', but remplacer par is the correct fixed structure.
How does the phrase Il s'agit de work in this sentence?
Could I say C'est de remplacer instead of Il s'agit de remplacer?
Why is l'énergie singular when the sentence mentions both fossil and nuclear energy?
French frequently treats l'énergie as an uncountable, broad concept here. You are talking about 'energy' as an overarching category that is modified by both adjectives. While the plural les énergies fossiles et nucléaires is also correct, the singular form used here is a very natural stylistic choice in French.