EARTH SCIENCE Exam 7A - cont ntinued ine if it describes alpha or 11. A. Read th
ID: 295790 • Letter: E
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EARTH SCIENCE Exam 7A - cont ntinued ine if it describes alpha or 11. A. Read the following description of radioactive decay. Determine if beta radioactive decay. With this type of radioactive decay, a particle is given off by an atom. The emitted particle consists of two protons and two neutrons. This particle quickly attracts two electrons. This statement describes APna_ radioactive decay B. When the particle attracts two electrons, what does the particle become? C. The isotope that released the particle has its number drop by 2 and has itsnumber drop by 4. D. Does the isotope become a different element? . Using complete sentences describe the three follosuing linds of unconformities.Explanation / Answer
11.
a. alpha
b. normal helium atom
c.atom,mass
d.no
13.
sedimentary rocks found at temperature and pressure that donot destroy fossil remnants.
18.
average speed = 1500m/s
it has to travel down and back to you so total distance is 2d
time taken 6.83 seconds
2d=speed*time
d=(speed*time)/2
=(1500*6.83)/2
=5122.5m
52.leap year
53. pope gregory XIII
54.JULIUS CAESAR
55. ancient egyptians
56.the Babylonians
57. Augustus Caesar
58. the ancient greeks
31.Uniformitarianism is a geological doctrine. It states that current geologic processes, occurring at the same rates observed today, in the same manner, account for all of Earth's geological features and assumes that geological processes are essentially unchanged today from those of the unobservable past, and that there have been no cataclysmic events in earth's history.Uniformitarianism competed for acceptance with catastrophism and eventually displaced it. we could understand much about how geologic features (such as valleys, sedimentary rocks, and mountains) came to be by observing the events of the present day. It gave us a tool to interpret the geologic past.
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