A mineral's hardness is dependent on the
A) strength of its chemical bonds.
B) strength of its ionization.
C) size of its atoms; large atoms are harder than small atoms.
D) geometric arrangement of atoms; sheet structured tetrahedra are harder than chained tetrahedra.
A
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In recent years, the World Bank has
A) increasingly invested in projects that increase development at the expense of the poor. B) stopped loaning money to countries that are unlikely to repay their loans. C) changed its mission to one that includes fighting poverty. D) cooperated with the United Nations to provide food and medical support to developing nations.
What orbital configuration favors glaciation? Why?
What will be an ideal response?
When prevailing winds push an air parcel up the side of the mountain
A) its relative humidity decreases. B) it warms. C) it will warm as it descends the far side of the mountain. D) it will drop most of its precipitation on the far side of the mountain. E) all of the above
Widespread cyclothem deposition in the Pennsylvanian has been attributed to glacial advances
and retreats on Gondwana. Indicate whether the statement is true or false.