because
Yes, in fact it is.
No, a bad coil will not drain the battery.
The battery that powers the CMOS and clock (PRAM and clock on a Mac) has died and must be replaced. On a PC this is usually a nonrechargeable coin cell (on a Mac this is usually a rechargeable battery connected with a short cable). Once this battery has been replaced the clock will function normally again.
bad alternator, bad voltage regulator, bad battery, bad connections.
Could be the battery is drained or bad. Could be battery connections at battery and or starter are dirty and or loose. Could be starter solenoid is bad. Could be starter is bad.
You might have a bad battery, a poor connection between the battery and alternator, or a bad ground from the battery.
Bad wiring can cause a short in the radio. Bad battery will not.
You have a bad cell in the battery and a bad cell will drain the other cells. get another battery
Yes, a lawnmower can run on a bad battery if it has a pull-start or manual start option, as these methods do not rely on the battery. However, if the lawnmower is electric or requires the battery for ignition, a bad battery will prevent it from starting. In such cases, replacing or recharging the battery is necessary for proper operation.
bad starter or bad connection to starter or bad ground on battery or starter
Elmer's glue is not bad for the environment.
Some materials like plastic are bad for the environment.