The Mediterranean climate is characterized by vegetation such as sclerophylls.
a. true
b. false
Answer: a. true
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Give the z-scores of the first five salaries.
The following values represent the salaries paid by a university department to all of its employees, omitting units: 27, 60, 143, 25, 24, 27, 42, 98, 29, 30, 97, 59, 26, 43, 27, 44, 25, 27, 26, 61, 145, 26, 40, 27, 46, 28, 24 What will be an ideal response?
Magmas are the product of melting in the deep part of the earth that forms a layer of molten material called the asthenosphere
Indicate whether the statement is true or false
An element found in another galaxy exists as two isotopes. If 80.0% of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0% have an atomic mass of 82.00 atomic mass units, what is the atomic mass of the element?
A. 64.0 atomic mass units B. 80.4 atomic mass units C. 81.6 atomic mass units D. 16.4 atomic mass units E. 81.0 atomic mass units
If a neutral element has the following chemical symbol, how many electrons does it have? U
A. 82 B. 143 C. 92 D. 235 E. none of the above