地球 ちきゅう環境 かんきょう保全 ほぜんではありませんでした
chikyūkankyōhozendewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 地球環境保全

1. Was not Earth environment conservation.; Was not environmental preservation.

Past/Perfective
Negative
Polite
Formal Register