Plate tectonics have affected biological evolution by ____.
a. causing global climatic change with joining together or breaking apart of large landmasses
b. causing more or fewer habitats to develop as continental masses come together or separate
c. forming geographic barriers
d. forming geographic corridors
e. all of these
e. all of these
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The reason a bullet has more kinetic energy than the recoiling rifle from which it is fired is because the force on the bullet acts over a longer
A) time. B) distance. C) both A and B D) none of the above
Elongated states may suffer from poor internal communication and difficulty defending its borders. Which of the following is not an elongated state?
A) Malawi B) Gambia C) Namibia D) Chile E) Italy
Harmonic tremors are ____
a. ?strong earthquakes generated by an eruption b. ?strong aftershocks generated after an eruption c. ?the effect of magma dome collapse d. ?weak earthquakes that precede an eruption e. ?the effect of large gas emissions
As student doing a titration of HNO3 with sodium hydroxide wanted to use methyl orange as an indicator. Methyl orange changes color at pH = 3.7. Which of the following will be true of this experiment?
A) The concentration of HNO3 will be reported as too high. B) The concentration of HNO3 will be reported as too low. C) The concentration of HNO3 will be reported correctly. D) The experiment cannot be done at all.