"And Allah has sent down rain from the sky, and by it He gives life to the earth after its lifelessness," meaning: the earth.
﴿وَاللَّهُ أَنْزَلَ مِنَ السَّمَاءِ مَاءً فَأَحْيَا بِهِ الأَرْضَ بَعْدَ مَوْتِهَا﴾ يَعْنِي: الأَرْضَ