这些工厂正在向大气中释放有毒气体。

These factories are releasing toxic gases into ___the ___atmosphere.

我反对汽车，因为它们的二氧化碳排放破坏大气。

I'm against cars because their CO2 emissions destroy ___the ___atmosphere.

科学家研究大气以理解气候变化。

Scientists study ___the ___atmosphere to understand climate change.