The strength of an electromagnet (directly/indirectly) depends amount of current in the wire, which means increasing the current (increases/ decreases) the strength of the electromagnet

a. directly; increases
b. directly; decreases
c. indirectly; increases
d. indirectly; decreases

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

gravity

explanation:

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

god i hope this !