Water is a resource that humans need to survive. How would this resource change if it took millions of years to replace?

A) It would be a natural resource.
B) It would be a renewable resource.
C) It would be an unnatural resource.
D) It would be a nonrenewable resource.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

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.

see earlier answer

d) physical means can be used to separate the components of air.