Translation of the verse 7 from Surah Al-Kahf : Number of verses 110 - - page 294 - Part 15.
Verily! We have made that which is on earth as an adornment for it, in order that We may test them (mankind) as to which of them are best in deeds. [i.e. those who do good deeds in the most perfect manner, that means to do them (deeds) totally for Allah's sake and in accordance to the legal ways of the Prophet SAW].
Indeed, We have made that which is on the earth adornment for it that We may test them [as to] which of them is best in deed.
(18:7) The fact is that whatsoever is on the earth, We have made it as its adornment so that we may test the people as to which of them does best deeds.