Question

Minerals are natural substances having definite chemical and ______ properties.

विकल्प

• organic

• physical

• biological

• Both organic and physical

Answer 1

Minerals are natural substances having definite chemical and physical properties.

Explanation: 

Minerals are natural substances having definite chemical and physical properties, not organic or biological ones. Physical properties include hardness, colour, density, etc. This distinguishes minerals from living organisms or organic compounds.