Question

Select appropriate options and complete the following paragraph:
(ores, gangue, metallurgy, electrolysis, minerals, gold, iron, platinum)
Based on their reactivity, most of the metals are found in combined state in the earth's crust
while some metals such as silver,
and
are found in free state. The
compounds of metals which occur naturally in the earth's crust are known as
The
minerals from which metals can be profitably extracted are called
Ores mined from
earth usually contain large amount of impurities like sand, soil, etc. These impurities are
called
The extraction of metals from their otes and then refining them for use is
known as​

Answer 1

Answer:

1st --- gold

2nd --- minerals

3rd --- gangue

4th --- metallurgy

Explanation:

Answer 2

Answer:

1st GOLD

2nd PLATINUM

3RD MINERALS

4TH ORES

Explanation:

5TH GANGUE

6th METALLURGY