Describe what influenced such profound change in artworks from Medieval to Renaissance periods.

The Influences of an increased awareness of nature, a revival of classical learning, and a more individualistic view of man.

Explanation:

option c (nickel) is not found in earth's crust. the earth's crust basically contains eight (8) elements namely: oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium (listed in order of abundance).