Answer: The correct option is D.
Explanation: Nonmetallic minerals are the chemical elements from which no new product can be formed when they are melted. For Example: Sand, marble etc..
For the given options:
Option A: Wood is a type of cellulose and is not considered as a nonmetallic mineral resource.
Option B: Iron is an element because it is the smallest substance which cannot be broken down. It is not considered as a nonmetallic mineral resource.
Option C: Coal is a mixture of carbon compounds. This is very close to mineral but is an organic mineral because it contains carbon atom. Hence, it is not considered as a nonmetallic mineral resource.
Option D: Aggregate is formed by the collection of particles forming a whole mass. This is a non-metallic resource as it cannot form any new product.
Hence, the correct option is D.
The nonmetallic mineral resource is [tex]\boxed{{\text{D}}{\text{. aggregate}}}[/tex].
Further Explanation:
Minerals are naturally occurring substances present in the earth’s crust. These form the basis of many basic industries. Quartz, calcite, and mica are some examples of minerals.
Types of mineral resources:
1. Metallic mineral resources
These contain one or more metals. Their occurrence is quite rare in nature. Iron, gold, bauxite, and copper are examples of metallic minerals.
2. Nonmetallic resources
These are the minerals that cannot form new products upon melting. These are basically used for the production of glass, ceramics, cement and lime products. Sand, clay, marble, and gravel are examples of nonmetallic minerals.
(A) Wood
It is a naturally occurring organic material that is solid in nature but it is not a mineral.
(B) Iron
It is an element or the simplest form in which it can exist. So it cannot be broken down or decomposed to form any new substances and therefore iron is not a nonmetallic mineral.
(C) Coal
It is composed of dead decaying plant and animal matter so it cannot be considered as a mineral.
(D) Aggregate
It is a collection of particles that cannot produce any new substance from it. So it is a non-metallic mineral.
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Answer Details:
Grade: Senior School
Chapter: General principles of isolation of elements
Subject: Chemistry
Keywords: wood, iron, coal, aggregate, metallic, non-metallic, mineral resource, element, dead decaying, plant, animal, collection, particles, organic material, solid.
