7إِنّا جَعَلنا ما عَلَى الأَرضِ زينَةً لَها لِنَبلُوَهُم أَيُّهُم أَحسَنُ عَمَلًا(Irfan-ul-Quran)And indeed We have made whatever is on earth a means of its beauty (and adornment) so that We test (the inhabitants of the earth) as to who is better on merit of their deeds.