what makes tripping of the power or over supply to burn the appliances?

Answer 1

Your electrical power will trip if the total current used by your appliances is above the rated current of your circuit breaker of fuse.
Just for example, the lines of your AC line connected to any of your appliances shorted with each other, the resistance between that wires will fall which makes the current in your power supply to increase.
Another cause is the so called octopus connection wherein too much load is being plugged into a single socket.
One more example, If you have a water pump and you modify the size of its suction line. The pump might work harder creating more torque to turn the empeller. Like a chain effect, the motor driving your pump should work harder and would require more current. This could also trip your power supply.

Answer 2

Yes, one person can make a difference. By doing these things, you are putting less pollution in the air, saving energy and enhancing the world environment with your gardening. Maybe your neighbors aren't mimicking what you are, but lots of us out here are doing what we can. Collectively, if even 20% of the worlds population lives like this, we are 1/5 better! If you want to do more, educate children about the environment. This will make the most lasting impact. Kids are enthralled by how plants grow, and if you show them how things work, teach them why to recycle, have them plant a garden and tend it, they will be more responsible in their life. We have 4 acres, and a good sized garden. Yesterday, I explained to a 1 1/2 and a 2 1/2 year old child how carrots and potatoes grew under the ground, and soaked up the nutrients from the dirt and the sun and they ate those veggies like I gave them cotton candy at the fair. When they get a little older, I will teach them how everything we put into the soil affects the quality and healthfulness of the food. Its the little things like this that collectively save the earth. Keep up the good work. You are making a difference.

Answer 3

A POWER SURGE
EITHER CAUSED BY THE
POWER COMPANY OR A ELECTRIC
STROM {IE}, LIGHTNING