Question

what issue is associated with the mercury content of compact fluorescent bulbs? they emit a strong odor. they can be harmful if broken. they become too heavy.

Explanation:

Mercury is a toxic substance. Compact fluorescent bulbs (CFLs) contain a small amount of mercury. If a CFL breaks, the mercury can be released into the environment and pose health risks to humans and ecosystems. The option "They emit a strong odor" is incorrect as CFLs don't typically emit strong odors due to mercury. "They become too heavy" is also incorrect as mercury content in CFLs is minimal and doesn't make them overly heavy. So the correct issue related to mercury in CFLs is that they can be harmful if broken.

Answer:

B. They can be harmful if broken.