Which fossils provide information as to the mode of formation of an oxygen-rich atmosphere by about 2 billion years ago?
A. dinosaurs
B. stromatolites
C. trilobites
Answer: B
Environmental & Atmospheric Sciences
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After Egypt's 1979 accord with Israel, the headquarters of the Arab League moved from Cairo to
A. Tunis B. Algiers C. Baghdad D. Riyadh
Environmental & Atmospheric Sciences
The vertical black lines indicated in rock units #3 and #4 indicate what type of feature?
A. slopes B. fractures C. beddings D. loose rock
Environmental & Atmospheric Sciences
The average global surface air temperature since the late 1800s has risen by more than 0.8°C
a. True b. False
Environmental & Atmospheric Sciences
Endemic species ________
A) have high rates of mutations that lead to large numbers of offspring species B) cause disease C) are invasive species that cause extinction D) are generalist organisms E) are found only in one place on the planet
Environmental & Atmospheric Sciences