True or False: The final accretion of Earth is thought to have included giant embryo collisions
Indicate whether this statement is true or false.
Answer: TRUE
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The majority of surface rocks are
A) extrusive. B) sedimentary. C) intrusive. D) metamorphic.
Why might global climate change impact the magnitude and frequency of hazardous events?
A) Many hazardous natural events are controlled in part by the amount of water in the system. B) Climate change may cause the acceptable risk of a natural hazard to increase. C) Climate change will likely increase the likelihood of earthquakes. D) Climate change is directly related to land use planning efforts.
Orbital eccentricity refers to ____
A)the need to add a "leap day" every four years B)variation in the timing of Earth's equinoxes C)how much Earth is tilted on it's axis D)how close Earth is to the Sun E)how circular or elliptical Earth's orbit is
The causes of the current (sixth) mass extinction include all of these, but not ________
A) pollution from pesticides, eutrophication and other causes B) global climate change C) invasive exotic species D) habitat alteration and destruction E) earthquakes, tsunamis and forest fires