Answer:
1. Geothermal energy
2. Hot springs and mineral springs( Mineral spring culture,Mineral springs,Hot springs)
3. Volcanic materials(development background of basalt fibre, properties and use of basalt fibre)
4. Gemstone and other mineral resources(diamonds , sapphire , garnet , opal , diatomite, obsidian , gold deposit and others.
5. Volcanic landscapes
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Answers & Comments
Answer:
1. Geothermal energy
2. Hot springs and mineral springs( Mineral spring culture,Mineral springs,Hot springs)
3. Volcanic materials(development background of basalt fibre, properties and use of basalt fibre)
4. Gemstone and other mineral resources(diamonds , sapphire , garnet , opal , diatomite, obsidian , gold deposit and others.
5. Volcanic landscapes