Why can a 25. watt fluorescent lamp produce as much illumination ...

[K@]

Why can a 25. watt fluorescent lamp produce as much illumination as a 100. watt incandescent lamp?
 
  What will be an ideal response?

Question 2

When the Sun runs out of nuclear fuel and expands to become a red giant,
 
  A) the Earth's oceans will freeze solid
  B) the Earth will be ejected from the solar system
  C) the Earth will be destroyed
  D) the Earth will experience a runaway greenhouse effect followed by the total loss of its atmosphere

[rekilledagain]

Answer to Question 1

The incandescent lamp produces heat out of the majority of the input energy and only a minority fraction becomes light. The fluorescent lamp produces more light, less heat.

Answer to Question 2

D

[K@]

TYSM

[amandalm]

Thanks for the timely response, appreciate it