The simplest data relationship for GIS operations is the:
A. many-to-many relationship
B. one-to-many relationship
C. many-to-one relationship
D. one-to-one relationship
Answer: D
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The formation of protons over neutrons (thus producing about a 7:1. ratio) was favored in the early universe because
A) it takes more energy to create a neutron from a proton than a proton from a neutron. B) it takes more energy to create a proton from a neutron than a neutron from a proton. C) the more massive neutrons made better targets for nucleon collisions. D) the positively charged protons were repelled away from the explosion.
Most cratons date to the
A) Precambrian eon. B) Paleozoic era. C) Devonian period. D) Paleocene epoch.
The only zone of the ocean with sufficient light for photosynthesis is the ________.
A. disphotic zone B. euphotic zone C. aphotic zone D. None of these is correct. E. All of these are correct.
The Agricultural Revolution began in Europe around 15,000 years ago
a. True b. False Indicate whether the statement is true or false