Why is the Modified Mercalli Intensity Scale no longer the main method used for measuring the size
of earthquakes? What will be an ideal response?
The Mercalli scale measures intensity, which is qualitative rather than quantitative. It depends on what
people see and feel. One person may make a very different interpretation of earthquake damage than
another, so it is very difficult to compare different earthquakes
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Which of the following is true about the European Union?
A) A country must be a EU member to issue euros. B) All EU member countries use the euro. C) The economically weaker countries were forced to implement unpopular policies such as cutting services and raising taxes. D) The German mark is still in wide use in Europe. E) The European Parliament is elected by the people in each of the member states in a sequential manner.
Why are silicate minerals the most common minerals in the crust?
A) because oxygen and silicon are the most common elements in the crust B) because carbonate and oxide minerals are more easily weathered C) because their building block is in the shape of a tetrahedron D) because they include elements such as magnesium, sodium, and potassium
Roughly circular surface depressions produced by concentrated solution of bedrock are called _______________
Fill in the blank(s) with correct word
Gray whales breed and give birth in ________ in the ________
A) cold high-latitude waters; summer B) cold high-latitude waters; winter C) mild mid-latitude waters; spring D) tropical lagoons; summer E) tropical lagoons; winter