Can parent rock features such as sedimentary structures and fossils survive low-grade metamorphism?
A) Yes, because the shells of the organisms are strong enough to withstand directed pressure.
B) No, because the sediments and organic materials will be melted.
C) Yes, because such features can withstand low temperatures and pressures but will be destroyed in higher metamorphic grades.
D) No, because even low-grade pressure is too much for such delicate features.
Answer: C
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Early city-based societies (Mesopotamian, Mayan, Roman) flourished because of their ability to control labor power and
A) reurbanize. B) overurbanize. C) counterurbanize. D) impose taxes and exact tributes. E) maintain traditional practices.
Which revolution occurred first?
A. industrial-medical revolution B. agricultural revolution C. sustainability revolution D. information-globalization revolution E. ecological revolution
With regard to trophic structure, the rule of 10 states that ________
A) metabolic rates roughly double with every 10°C increase in temperature B) approximately 10% of the energy at one trophic level is transferred into the biomass of the next trophic level C) approximately 10% of the energy at one trophic level is lost to the environment before being transferred into the biomass of the next trophic level D) only 10% of the calories available at one trophic level will be consumed by organisms in the next trophic level
Ozone consists of ________ molecules of oxygen, is found primarily in the ________ and protects us from ________.
A. 3; stratosphere; ultraviolet rays B. 2; troposphere; meteors C. 2; troposphere; cosmic rays D. 2; stratosphere; X-rays and gamma rays