What is the difference between a semi-precious and a precious stone?
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What is bitumen?
Explain the difference between a canyon, gorge, and valley?
What is geology?
Explain the general statement regarding the temperature of water in oceanic depths?
Define loam soil?
What is petrologists?
In 1763, how did great britain try to end troubles with the native american?
Do mountains exist on moon? How were they formed?
What is inorganic matter?
Is there a hypothetical situational possibility of an occurance happening in yellowstone which would destroy north america but leave the rest of the world unharmed?
How old is the earth?
How has the earth evolved since formation?