There are many volcanoes in the world. They are like openings in the crust of planet Earth. Through them, white-hot and red-hot rocks, molten lava, steam, fumes and certain other things are powerfully sent out of the ...There are many volcanoes in the world. They are like openings in the crust of planet Earth. Through them, white-hot and red-hot rocks, molten lava, steam, fumes and certain other things are powerfully sent out of the Earth's surface.展开更多
The tarantula is the largest spider in the world. Among the tarantulas, the largest type is the South American goliath birdeater (or the South American goliath bird-eating spider). A typical full-grown specimen can be...The tarantula is the largest spider in the world. Among the tarantulas, the largest type is the South American goliath birdeater (or the South American goliath bird-eating spider). A typical full-grown specimen can be slightly larger than the fully-outstretched palm of an ordinary adult human being.展开更多
文摘There are many volcanoes in the world. They are like openings in the crust of planet Earth. Through them, white-hot and red-hot rocks, molten lava, steam, fumes and certain other things are powerfully sent out of the Earth's surface.
文摘The tarantula is the largest spider in the world. Among the tarantulas, the largest type is the South American goliath birdeater (or the South American goliath bird-eating spider). A typical full-grown specimen can be slightly larger than the fully-outstretched palm of an ordinary adult human being.
