Question

1. breathing exhaust gasses can cause (1 point) drowsiness, headaches, death hyperactivity horseplay all of the above 49. have proper ventilation when (1 point) painting sanding welding all of the above

Explanation:

Exhaust gases contain harmful substances like carbon - monoxide. Breathing them can cause drowsiness, headaches and in severe cases death. Painting, sanding and welding can all release fumes or particles, so proper ventilation is needed for all these activities.

Answer:

1. A. drowsiness, headaches, death
2. D. all of the above