Diamonds Are The Hardest Known Natural Material.

Japan sits on the Pacific Ring of Fire where four tectonic plates meet, making it one of the most seismically active countries on Earth. Approximately 1,500 earthquakes are recorded annually, most too small to feel. The 2011 Tōhoku earthquake and tsunami, measuring 9.0 magnitude, was the most powerful ever recorded in Japan.

Chile lies along the Pacific Ring of Fire and has more than 2,000 volcanoes, of which about 90 are considered active. This makes it one of the most volcanically active countries in the world. The Villarrica volcano in the Lake District is one of South America's most active, often displaying a visible lava lake. Volcanic activity has shaped Chile's diverse geography and fertile soils.

Unlike many oceanic islands, the Cocos (Keeling) Islands are true coral atolls, meaning they are rings of coral reefs built atop submerged ancient volcanoes. The visible landmass is entirely biogenic, created by living organisms over millennia.

The extreme aridity and unique geological formations in specific areas of the Atacama Desert have led NASA to use them as testing grounds for Mars rovers. These hyper-arid valleys provide an environment analogous to the Red Planet's surface.