Light elements like hydrogen and helium form a large percentage of the outer planets and Sun is made up primarily of hydrogen. Why are these elements nearly absent from the inner planets?
A) It is a mystery that has never been solved by science.
B) The Sun captured all of the hydrogen during its formation.
C) Hydrogen and helium have all been bound up by chemical reactions on the inner planets and are held in rock.
D) These light elements are blown away from the inner planets by the solar wind.
D
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Conditional instability is when the lapse rate of an air parcel is ________
A) greater than the wet adiabatic lapse rate B) greater than the dry adiabatic lapse rate C) less than the wet adiabatic lapse rate D) less than the dry adiabatic lapse rate E) between the wet and dry adiabatic lapse rate
Approximately ________% of U.S. citizens live in coastal counties and are thus vulnerable to storm surges and a rise in sea level
A) 83 B) 95 C) 10 D) 20 E) 53
Saponification requires which of the following reagents?
A) an oxidizing agent B) a strong base C) a reducing agent D) a weak acid
Which of the following is a protein associated the storage of iron?
A) actin B) ferritin C) hemoglobin D) insulin