What does the following element description actually mean? iron-57
A) iron with a mass number of 57
B) iron with an atomic number of 57
C) iron with 57 protons
D) iron with 57 neutrons
E) 57 iron atoms
A
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Which of the following best describes the Pleistocene?
a. A warm, humid period of swamps and forests when dinosaurs roamed Earth b. A most recent climate interval characterized by warm, stable conditions c. A series of four major glacial cycles slowly followed by shorter, warmer interglacials d. A complex record of climate changes characterized by cycles of rapid advance and retreat of glaciers
The principle of ________ states that the physical, chemical, and biological processes at work shaping the Earth today have also operated in the geologic past
A) catastrophism B) plate tectonics C) plutonism D) Uniformitarianism
Unlike the Slavic languages which split into three branches, Romance languages form one branch because
A) there was limited migration in this part of Europe. B) there was no literary tradition of the language. C) Romance languages derive from a single root language, Latin. D) Romance languages derive from a single root language, Arabic. E) migration efforts were slowed by intervening obstacles.
Greenways ________
A) are links that provides pathways for wildlife to travel between parks and preserves B) prohibit hiking and biking or recreational opportunities C) are urban golf courses D) contain parks that are large enough to harbor populations of exotic flora and fauna E) are waterways within city parks