Question

20. Which of the following can help in reducing the carbon footprint?
Using fly-ash based cement in building construction.
Using LED-based electric lamps instead of incandescent lamps.

Answer 1

While using LED based electric lamps instead of incandescent lamps, carbon footprint can be reduced.

Incandescent lamps after burning causes smoke and forms carbon soot over the lamp.

This is the reason why carbon footprints occur.

However, with the use of fly ash based concrete cement too, it can be reduced.