Which of the following elements is in the fourth period?
A. hydrogen (H)
B. zirconium (Zr)
C. chromium (Cr)
D. carbon (C)
E. beryllium (Be)
Answer: C
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When contrasting catastrophism with uniformitarianism,
a. catastrophism was published first and proposed that all of Earth's landscapes were formed by a single catastrophic event, whereas uniformitarianism, which was published over a century later, proposed that the physical, chemical, and biological processes that operate today have also operated in the geologic past. b. catastrophism was published first, and it proposed that Earth's landscapes were formed by catastrophic events. On the other hand, uniformitarianism was published over a century later and proposed that the physical, chemical, and biological processes that operate today have also operated in the geologic past. c. catastrophism was published first and proposed that Earth's landscapes were formed by catastrophic events, whereas uniformitarianism, which was published over a century later, proposed that all of Earth's landscapes were formed by a single event. d. uniformitarianism was published first and proposed that all of Earth's landscapes were formed by a single event, whereas catastrophism, which was published over a century later, proposed that Earth's landscapes were formed by catastrophic events. e. uniformitarianism was published first, and it proposed that the physical, chemical, and biological processes that operate today have also operated in the geologic past. On the other hand, catastrophism was published over a century later and proposed that Earth's landscapes were formed by catastrophic events.
________ faults are commonly found at areas of plate convergence where subduction or continental collision occurs.
A. Transform B. Normal C. Strike-slip D. Reverse
The outermost region of the atmosphere, based on composition, is the
A) homosphere. B) heterosphere. C) troposphere. D) thermosphere.
How many times in the last century have meteorites struck and killed people in North America?
a. none b. only one c. only a few (less than five or so) d. about 15 e. about 50 (one every couple of years)