A: Lightning is not the cause but the result when clouds or dust particle containing energy discharges its energy. Current will flow from positive to negative potentials
They get burnt and break down.
CFCs
An overload occurs when the load current is higher than the nominal current rating of the conductor supplying the load. Over time, this can cause the insulation to break down and cause a short-circuit to occur between conductors.
It may strike the lightning rod. A properly installed lightning rod will prevent a lightning strike from setting your house on fire, at least for the most part. The energy of the bolt is carried by the rod and the ground wire. This system "contains" the electric current by offering it a low resistance path to ground. If lightning strikes a tree, a power pole, or a house, it travels through the tree, pole or house. This high current can super heat that wood or other materials and cause them to explode or burst into flames. Damage will result, and very possibly a fire. The lightning rod minimizes the chances of extensive damage and fire in the event of a strike on a house.
fossil
it is the minimum revers voltage at which P N Junction brake down with sudden rides in reverse current.
The current from a battery is steady and usually at a low voltage. A spark happens when there is a voltage high enough to break down the air molecules, and then a high current flows very suddenly and quickly. A lightning strike could be a million amps but it's all over in about 10 microseconds.
Yes.
it can cause a fire if a house get knocked down and the electrical break a fire can start
Yes, lightning striking a tree can knock it down if the strike is powerful enough to cause significant damage to the tree's structure. The intense heat from the lightning can also vaporize water inside the tree, leading to an explosive release of energy that can split or topple the tree.
Chemical weathering breaks down rocks
It goes either way, with (I think) up-down predominating. Lots of good info online about this.