According to the first law of thermodynamics, what could happen when heat is added to a system? a the internal energy of the system decreases. b the heat is turned into work done by the system. c new energy is created within the system. d some of the energy in the system is destroyed.

B

Explanation:

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

i would say