Your sister Zara has finished doing homework and then u come to her and then...........
you- Zara you have finished your homework
Zara- Yes Di I have.
Lets go and sleep
Then she walks without switching off the lights and fans
you- Zara come here!
Zara- What happened Di!
you- Why did not switch off the lights?
Do you know how important electricity is?
If there will be no electricity then what will you do?
Zara- Huh Di leave it
you- No Zara you are becoming very careless u do not know the importance of electricity Electricity is really a important thing for us and we should never waste it and always conserve
Now promise you will never waste electricity and always conserve
Zara- Yes Di you are correct I promise I will never do like this again
Then she switches off the lights and fans and goes to sleep