The main processes that happens during the alpha type of radioactivity decay is:
a. an electron is given off
b. an electron is absorbed and turned into a neuron
c. an atom splits into two pieces
d. an alpha particle combines with small atom to make a larger one
Answer: c. an atom splits into two pieces
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Sedimentary rocks form
A) deep within Earth's crust. B) at Earth's surface environment. C) at elevated temperatures and low pressures. D) from magma on the surface.
A dim, watery sun visible through a gray sheet-like cloud layer is often a good indication of ____ clouds
A) stratocumulus B) cirrostratus C) altostratus D) nimbostratus
Which of the following is true of the prime meridian?
A) It is used to determine latitude using lines that run east and west. B) It was first used in the 1500s at the time of initial circumnavigation voyages. C) It was not established until 1884 and is centered on an observatory near London. D) It is that place on Earth where the days officially change.
The San Andreas Fault in California and the Alpine Fault in New Zealand are examples of ________
A) strike-slip faults B) normal faults C) thrust faults D) oblique-slip normal faults