Sand or gravel that naturally forms near earth's surface is known as a. pollen. b. aggregate. c. ore. d. bedrock.

The answer to this question is B. aggregate
In mining context,  aggregate refers to the mass of rock that is naturally crushed due to some circumstances and formed a smaller mass like sand or gravel.
This type of sand/gravel usually used in our society as a mixture to build building foundations for the construction industry.

Is known as aggregate.

Are there any words that will you

A,b,c is the answer to the question