At room temperature, which of these are oxide minerals? select all that apply. a.h2ob. co2c. al2o3d. fe3o4

 C. and D.

Explanation: Oxide minerals are the minerals in which the oxide anion is bonded to the central metal atom. These are useful for industrial purposes.

Out of the given options, only two of them can be categorized as the oxide minerals.  

H2O and CO2 will not be considered as oxide minerals.

the product of the pressure and volume is also constant

the answer would be b i believe