Question 1
Which heavy metal is found in fluorescent lamps and thermometers?
The right answer is the one marked above.
Mercury. Cadmium is in batteries and phones; arsenic in LEDs.
Lesson: Chapter 15 — The biosphere
This erases every answer in this set and starts you again at question one. Your score will be gone.
Type these four numbers to confirm:
Those numbers don't match. Look at them again and type them.
Which heavy metal is found in fluorescent lamps and thermometers?
The right answer is the one marked above.
Mercury. Cadmium is in batteries and phones; arsenic in LEDs.
This browser is not saving your answers, so no total can be shown.
Answer the question to continue.