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what is the mystery behind cosmos mystery mountain in rapid city, south dakota?

Submitted by donna 2 months ago.

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What's with this 2012 When that year comes surpose to be The of the world ? I heard on tv talk about cultures from all over the ...

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A radioactive element has a half-life of 1,000 years. If a sample of this element begins with a mass of 20 grams, how long would ...

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what distance is covered by earth's annual circuit round the sun?

Submitted by Ishita 13 hours ago.

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The Tree That Time Built: A Celebration of Nature, Science, and Imagination is this book a look into evolution? Is this a good ...

Submitted by Dalarie G. 2 months ago.

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I'd like to teach my kids about fossils,Any recommendations on books on the topic for ages 5-8 ? any museums that focus on ...

Submitted by Avichay 4 years ago.

Last answer posted 3 years ago by Avichay

Are all mines in the western world being rehabilitated after the mining is stopped? Are there mines that just can't be ...

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Last answer posted 1 year ago by Miranda

I was surprised when I found out recently that the plate tectonics theory is relatively new, about 40 years old. I thought it was ...

Submitted by carry 3 years ago.

Last answer posted 2 years ago by geosocietygirl