How is a lead storage battery charged
a a direct current is applied to it
b a magnet is held close to it
c alternating current is forced through it
d the pressure on it is increased

i think its a

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Why is retrograde motion an apparent motion

How do dying stars contribute to the formation of planets