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Short Answer Questions:

1. What is limestone made of? Give one use of limestone.

2. What is an ore? Write the names of copper and zinc ores.

Answer :

Final answer:

Limestone is primarily made of calcium carbonate and is widely used in construction and cement manufacturing. An ore is a natural resource from which metals can be extracted, with examples including copper ores like chalcopyrite and zinc ores like sphalerite.


Explanation:

1. What is limestone made of? Give one use of limestone.

Limestone is a sedimentary rock primarily composed of the mineral calcium carbonate (CaCO3). It often forms from the accumulation of the skeletal remains of marine organisms. One common use of limestone is in the construction industry, where it is used as a building stone and as a key ingredient in the manufacture of cement and lime.

2. What is an ore? Write the names of copper and zinc ores.

An ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably. Copper ores include minerals such as chalcopyrite (CuFeS2) and bornite (Cu5FeS4), while zinc ores typically include sphalerite (ZnS) and smithsonite (ZnCO3).


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