Amongst the following, which is better suited for dumping of nuclear waste?

Deep salt mines are better suited for dumping nuclear waste because the stable, dry rock salt seals radioactivity and stays geologically undisturbed.

Deserts are exposed at the surface and offer no lasting containment against leakage or human intrusion.

Forests are living ecosystems where buried waste would threaten wildlife, soil and groundwater.

Oceans would allow radioactive material to disperse widely and contaminate marine food chains.

Salt formations self seal any cracks and have remained dry and stable for millions of years.

This is why geological repositories in salt or deep rock are favoured for long term storage.