The correct answer is D. All of them.

Here's why:

A. Limestone: It is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite.

B. Gypsum: It is a soft sulfate mineral composed of calcium sulfate dihydrate (CaSO4·2H2O).

C. Dolomite: It is an anhydrous carbonate mineral composed of calcium magnesium carbonate (CaMg(CO3)2).

So, all of them (Limestone, Gypsum, Dolomite) are ores of calcium.

Question

The correct answer is D. All of them.

Here's why:

A. Limestone: It is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite.

B. Gypsum: It is a soft sulfate mineral composed of calcium sulfate dihydrate (CaSO4·2H2O).

C. Dolomite: It is an anhydrous carbonate mineral composed of calcium magnesium carbonate (CaMg(CO3)2).

So, all of them (Limestone, Gypsum, Dolomite) are ores of calcium.

Knowee AI · Accepted Answer

The correct answer is D. All of them.

Here's why:

A. Limestone: It is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite.

B. Gypsum: It is a soft sulfate mineral composed of calcium sulfate dihydrate (CaSO4·2H2O).

C. Dolomite: It is an anhydrous carbonate mineral composed of calcium magnesium carbonate (CaMg(CO3)2).

So, all of them (Limestone, Gypsum, Dolomite) are ores of calcium.

Which is/are the ore(s) of calcium?Select an answerALimestoneBGypsumCDolomiteDAll of them