Answer:
It all comes from the sun
Explanation:
this is because without the sun plants wouldn't grow and without plants our meat sources can't eat and therefore nothing else can either.
60 years is three half life for the substance, so 40*1/2^3=5
I have the same assigment we can help each other
"Excretory Process" is the process which removes wastes
Hope this helps!
Answer:
the boy is in Kinetic energy
Explanation:
Because when he swings he isn't experiencing any forces towards him only the swing experiences potential energy
