The load current is greater that the amperage of the breaker. Add up everything that is plugged into the circuit. If the total is greater that the number marked on the handle of the breaker unplug some of the equipment.
either the breaker is too small or the refrigerator is causing an overload
you have a short to ground in the electrical circuit that that breaker is on.
yes you can put the both in one socket but in practice it should not. You run the risk of popping a circuit breaker or fuse.
The most likely possibility is the refrigerator has a problem and needs to be fixed. Another possibility is the refrigerator is on a circuit that does not have enough current capacity to operate it and other appliances that are on the same circuit.
Not unless the wire going to the refrigerator outlet is AWG 10/2. If it is wired with 12/2 wire then you must use a 20 amp breaker. Using a 30 amp breaker is dangerous and a fire hazard.
For a standard size refrigerator, a dedicated 15 amp circuit is used.
Yes, as long as the rating of the breaker is high enough. Do not use a 20 amp breaker with 14 ga wire however. 14 ga wire can not have a breaker ratered high than 15 amps serving it.
Something wrong with it like a bad motor.
allegedly it is a reflex to keep your eyes from popping out
Keep it away from heat.
Keep them in the refrigerator but not in water, just in a sealed container.
to keep it fresh
these empty files keep popping up in my computer