Question

where should the used wooden splints be discarded?
in the recycling waste bin
in the sink
the splints are dunked in water and then safely thrown in the trash
in the trash can

Explanation:

Used wooden splints are usually considered general waste. Recycling bins are for recyclable materials and wooden splints may not be part of typical recycling streams. Sinks are for water - soluble or liquid waste, not for solid wooden splints. Dunking in water is not a standard disposal method for used wooden splints. The trash can is the appropriate place for general solid waste like used wooden splints.

Answer:

In the trash can