Answer:
because as at age the boys dont listen to their parents and ride the bike at high speed which is very dangerous and they are careless they think they handal the vehical thou speed is ok atleast they will not were the safty think
so this may be a reason
plz mark me brainlist
Answer:
D
Explanation: marked with long, thin parallel streaks
<span>the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.</span>
