query: 1990માં, રણની રેતીના જોખમને કારણે, તે વિશ્વની જોખમમાં મૂકાયેલી હેરિટેજ સાઇટની સૂચિમાં ઉમેરાઈ હતી.
positive: In 1990, it was added to the list of world heritage sites in danger, due to the threat of desert sands.
negative: In 1980, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1983, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1984, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1986, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1987, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1989, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1990, it was not added to the list of world heritage sites in danger, due to the threat of desert sands. In 1992, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1993, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1994, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1998, it was added to the list of world heritage sites in danger, due to the threat of desert sands. In 1999, it was added to the list of world heritage sites in danger, due to the threat of desert sands.