Minerals

Question 1

mineral

Answer 1

Minerals are substances that are naturally present in the earth. A mineral has a definite chemical composition and is formed by inorganic process. E.g. – iron ore, copper, gold and silver

Question 2

ore

Answer 2

Ores are minerals that have a high concentration of a certain element typically a metal. E.g. – Bauxite is the ore of the mineral aluminum

Question 3

Fossil Fuel

Answer 3

Fossil fuels or mineral oils are formed over millions of years from the fossils that were buried under dirt and rocks. Heat from inside the earth and pressure from rocks changed these fossils into coal, oil and natural gas.

Question 4

What is iron ore used for

Answer 4

a. to manufacture steel.
b. to manufacture machinery for industries.
C. in the ship building, automobile industry, and construction of roads and railways.

Question 5

2. List the uses of bauxite

Answer 5

Aluminum is obtained from it.

b. It is used in aeronautical industry.
c. it is used in making utensils and electrical cables