Question

which household activity is a significant source of volatile organic compounds (vocs)?
boiling water for tea or coffee
opening windows for fresh air
using chemical - based cleaning products
vacuuming with a hepa filter

Explanation:

• Boiling water only involves phase change of water (H₂O, not organic), so no VOCs.
• Opening windows is for ventilation, not a source of VOCs.
• Chemical - based cleaning products often contain organic chemicals (like solvents, fragrances) that can volatilize, releasing VOCs.
• Vacuuming with a HEPA filter is for removing particles, not emitting VOCs.

Answer:

using chemical - based cleaning products