Light can be described as a stream of fast-moving particles called ________
Fill in the blank(s) with correct word
photons
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In 2016, the population of the United States was approximately 325 million people, with an annual growth rate of approximately 0.7%. If the population of the U.S. were to continue to grow at this rate, the population of the U.S. would double around the
year ________. A) 2066 B) 2086 C) 2096 D) 2116 E) 2136
Immigration to the United States slowed considerably after the First World War and remained low until the ________.
A. 1970s B. 1980s C. 1960s D. 1990s
What level of sorting is visible in the above image?
A) Well sorted B) Moderately sorted C) Poorly sorted
_________________ is the average number of children a woman in a particular country has in her lifetime, whether or not they all live to adulthood.
-Fecundity -Child-woman ratio -Replacement level -Birthrate -Fertility rate