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About duba

Geologist (its more than enough)
Member Since May 28, 2006
70, Male, Israel

Answers


A:

When the millennium changed, and it turned to the ...

Hi B.Marie Try this address: http://en.wikipedia.org/wiki/Y2K You will find all you need about "BUG 2000"
Submitted by duba 1 year ago
0 comments


A:

Answer key needed for grades 9-12 earth science ...

Hi Alexb A good starting for finding an excellent source to workbook in "earth-science) is here: http://www.ee.enr.state.nc.us/edresources/eebibbookshigh.htm
Submitted by duba 1 year ago
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A:

Which minerals weather first

Hii Dooli As a rule - the rock's (and the minerals) weathering depend ,almost, on their hardness and the rate of solubility in water. So - the first mineral will be the HALITE (sea salt, or rock ...
Submitted by duba 1 year ago
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A:

Why doesn't Hawaii show on the North American map

ANY MAP HAS ITS OWN SCALE. for example: a topographic map has a scale of 1:100,000 ( 1 cm = 1 km). A typical Roadmap has a scale of 1:1,000,000 (1 cm = 10 km).A map of North America must be, at least ...
Submitted by duba 1 year ago
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A:

We have a 58lb malachite rock. We would like some ...

Take the rock to the nearest quarry and ask them to saw it to many plates as possible , with thickness 1.5 - 2.0 sm. Then take them to a carpenter to build a frame with 3 or 4 feet for it. You have ...
Submitted by duba 1 year ago
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A:

We have a 58lb malachite rock. We would like some ...

Hi MALACHITE is an DYDROUS COPPER CARBONATE. The main color is green. As its hardness is only 4 (IN the mineral's scale 1 to 10), it is not "a sem- precious stone" . It is a very valuable decorative ...
Submitted by duba 1 year ago
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A:

Earth's Core

Hi As we understand the structure of the Earth: 1) The CRUST - 10-70 km. 2) The MANTLE - down to a depth of 2900 Km. 3) The OUTER CORE - down to 5100 km. 4) The INNER CORE - down to 6370 km. As ...
Submitted by duba 1 year ago
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A:

Why does alaska have so many earthquakes

As geologists began to study rocks in many mountain belts around the world it was discovered that often very different rock types with different geologic histories and fossil assemblages would be ...
Submitted by duba 1 year ago
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