Question
Read the passage given below and answer the following question.
Rocks are made up of different minerals. Minerals are naturally occurring substances which have certain physical properties and definite chemical composition. Minerals are very important to human kind. Some are used as fuels. For example, coal, natural gas and petroleum. They are also used in industries-iron, aluminium, gold, uranium, etc. in medicine, in fertilisers, etc.
(i) What are rocks primarily composed of?
(a) Organic materials $\quad$ (b) Minerals $\quad$ (c) Gases$\quad$ (d) Water
(ii) Which of the following is not a characteristic of 0 minerals?
(a) Crystalline structure
(b) Specific physical properties
(c) Naturally occurring
(d) Variable chemical composition
(iii) Which of the following minerals is used as fuel?
(a) Coal $\quad$ (b) Iron $\quad$ (c) Mica $\quad$ (d) Gypsum
(iv) Which of the following is an example of industries in which minerals like iron, aluminium commonly are used?
(a) Agriculture $\quad$ (b) Textiles $\quad$ (c) Healthcare $\quad$ (d) Automobiles
Rocks are made up of different minerals. Minerals are naturally occurring substances which have certain physical properties and definite chemical composition. Minerals are very important to human kind. Some are used as fuels. For example, coal, natural gas and petroleum. They are also used in industries-iron, aluminium, gold, uranium, etc. in medicine, in fertilisers, etc.
(i) What are rocks primarily composed of?
(a) Organic materials $\quad$ (b) Minerals $\quad$ (c) Gases$\quad$ (d) Water
(ii) Which of the following is not a characteristic of 0 minerals?
(a) Crystalline structure
(b) Specific physical properties
(c) Naturally occurring
(d) Variable chemical composition
(iii) Which of the following minerals is used as fuel?
(a) Coal $\quad$ (b) Iron $\quad$ (c) Mica $\quad$ (d) Gypsum
(iv) Which of the following is an example of industries in which minerals like iron, aluminium commonly are used?
(a) Agriculture $\quad$ (b) Textiles $\quad$ (c) Healthcare $\quad$ (d) Automobiles