Liquid crystal display (LCD)monitors have largely replaced cathode ray tube (CRT)display monitors for televisions and computers.Which of the following is a problem that results from use of LCD monitors?
A)The LCD monitors need to be shielded with lead, and lead is a toxic metal.
B)Large amounts of nitrogen trifluoride (NF₃)are used in production of LCDs, and much of it is released to the atmosphere.NF₃ is a greenhouse gas that is much more efficient at trapping atmospheric heat than other greenhouse gases, such as CO₂.
C)LCD monitors use less energy than CRT monitors do.
D)Manufacturing of LCD monitors releases much more CO₂ into the atmosphere than manufacturing of CRT monitors did.

Question

Quizplus · Accepted Answer

The use of nitrogen trifluoride (NF₃) in the production of LCD monitors is a problem as it is a potent greenhouse gas with a high global warming potential. It is much more efficient at trapping atmospheric heat than other greenhouse gases, such as CO₂. While LCD monitors do have some advantages over CRT monitors, the use of NF₃ in their production and the impact on the environment is a concern that should be addressed.

Liquid Crystal Display (LCD)monitors Have Largely Replaced Cathode Ray Tube