Why is the Moho of importance?
What will be an ideal response?
Answer: It is the zone of rapidly differing density and mineral composition at the base of the crust. It is crucial in that it is the top of the much denser mantle on which the crust floats.
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Cut-off cyclones feature intensifying precipitation
Indicate whether the statement is true or false
BRIC countries represent
A) a political alliance to ensure reduced dependency on the European Union. B) a potential dominant industrial bloc if they work together. C) the world's nuclear powers. D) countries committed to green, sustainable economic development. E) the world's most significant technical labor source.
Most metamorphic rocks near the Earth's surface are derived from three common sedimentary rocks. Which three?
A) Conglomerate, graywacke, and arkose B) Shale, quartz sandstone, and limestone C) Basalt, travertine, and claystone D) Quartz sandstone, arkose, and siltstone
The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/cm3 silver = 12.59 g/cm3 gold = 19.32 g/cm3 A sample of material is found to weigh 14.03 grams, and have a volume of 1.20 cm3. The sample could be which of the coinage metals?
A) copper B) silver C) gold