Is the supply of copper-rich ores greater or lesser than iron-rich ores?

Hi! I am not sure it is a Guess but I think it is lesser if I am wrong pls let me know.

the dissolution of polymer can be thermodynamically described in 2 steps.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )