How much CO2 does a TV in stand by produce in a year or in a day??

You mean a television? (Your question is ill expressed.) A television doesn't produce CO2.
CO2 is eliminated by plants and photosynthesis not TV.
None. The generation of the electricity that it uses while on standby, however, may produce a small amount.

The answers post by the user, for information only, does not guarantee the right.

More Questions and Answers:
  • How does birth and proper education influence AI Gore?
  • What exactly is a global positioning system and what are its possible benefits?
  • Q for scientists: What effect does the hole in the ozone layer have on our oxygen and thus on us?
  • Solar panels on House vs Hybrid auto - Which does more for the envirornment?
  • Long haul lorry travel - manufacturing clothing etc...?
  • What to do with garbage in India ?
  • What is the use of each of the following?
  • Purpose and formation of thunder?