It is important organic mineral that is found in the soil as ash​

Calcium is the most abundant element in wood ash and gives ash properties similar to agricultural lime. Ash is also a good source of potassium, phosphorus, and magnesium.

calcium

Explanation:

it comes from earth

answer; i believe that the correct answer is u.s///british,and canadian forces; /// normandy invasion also called operation overlord; plz check first