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madhur_ahuja
- Master | Next Rank: 500 Posts
- Posts: 435
- Joined: Sat May 02, 2009 3:55 am
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Geologists once thought that the molten rock known as lava was an underground remnant of Earth's earliest days, sporadically erupting through volcanoes, but they now know that it is continuously created by the heat of the radioactivity deep inside the planet.
was an underground remnant of Earth's earliest days, sporadically erupting
had been an underground remnant of Earth's earliest days and sporadically erupted
was an underground remnant of Earth's earliest days, which sporadically erupted
would be an underground remnant of Earth's earliest days that sporadically erupted
was an underground remnant of Earth's earliest days, having sporadically erupted
was an underground remnant of Earth's earliest days, sporadically erupting
had been an underground remnant of Earth's earliest days and sporadically erupted
was an underground remnant of Earth's earliest days, which sporadically erupted
would be an underground remnant of Earth's earliest days that sporadically erupted
was an underground remnant of Earth's earliest days, having sporadically erupted
