The subatomic particle that contributes mass and a single positive electrical charge is the
A. electron
B. neutron
C. proton
Answer: C
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The doldrums are located in the Intertropical Convergence Zone, near the north pole.
Indicate whether the statement is true or false.
On average, what is the time interval that a great earthquake triggers a horrific calamity?
a. Roughly one hundred years b. Every 50 years c. Every 5 to 20 years d. Once a year
This image shows bonding for graphite (on the left) and diamond (on the right). Both minerals are made of carbon, so why do they have very different properties (why is graphite so soft while diamond is so hard)?
A. Diamond has a different type of covalent bonds between the atoms of carbon than does graphite. B. Minerals with only one type of bond will always be harder than minerals that have two different types of bonding. C. Covalent bonds in both minerals are very strong, but intermolecular bonds between sheets in graphite are very weak. D. Graphite's mixture of covalent and intermolecular bonds is stronger than the solely covalent bonds within diamond.
What feature is highlighted with an arrow in this image?
A) Sinkhole B) Perched water table C) Cone of depression D) Ground subsidence