arable land: 10.57% permanent crops: 1.04% other: 88.38% (2005)
Irrigated land:
2,770,980 sq km (2003)
Natural hazards:
large areas subject to severe weather (tropical cyclones), natural disasters (earthquakes, landslides, tsunamis, volcanic eruptions)
Environment - current issues:
large areas subject to overpopulation, industrial disasters, pollution (air, water, acid rain, toxic substances), loss of vegetation (overgrazing, deforestation, desertification), loss of wildlife, soil degradation, soil depletion, erosion; global warming becoming a greater concern
Geography - note:
the world is now thought to be about 4.55 billion years old, just about one-third of the 13.7-billion-year age estimated for the universe
People
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