What is the harmful pollutant released from CFLs and LEDs?
Barium
Cobalt
Arsenic
Gallium
Arsenic is the harmful pollutant released from CFLs and LEDs.Semiconductors, diodes also release arsenic and pollute the environment.
Harmful chemicals released out from the chemical factories cause air pollution.
The most non-polluting and efficient lighting device is :
(a) CFL (b) LED
(c) Fluorescent light (d) Electric bulb.
Burning of non-biodegradable wastes releases harmful pollutants.