An aggregate is one type of land resources. What is an aggregate?

An aggregate is a mineral resource

Explanation:

An aggregate is a mineral resource that comprises of two or more mineral that remains undifferentiated in it. Aggregates are commonly used in construction. Aggregates used in construction consists of a blend of coarse and fine aggregates/stones in a proportionate amount to provide strength to building structures made up of RCC and concrete. Coarse aggregate includes gravel/boulders while fine aggregate consists of coarse and fine sand.

A whole formed by combinig seperate elements