Author Question: Which two geological processes appear to have been most important in shaping the present surface of ... (Read 38 times)

dejastew · **on:** Jul 27, 2018

Which two geological processes appear to have been most important in shaping the present surface of Venus?

A) impacts and volcanoes
B) impacts and tectonics
C) tectonics and erosion
D) volcanoes and tectonics
E) volcanoes and erosion

Question 2

Which new idea has been added into our theory of solar system formation as a result of the discoveries of extrasolar planets?

A) In addition to the categories of terrestrial and jovian, there must be an in-between category of planet that has the mass of a jovian planet but the composition of a terrestrial planet.
B) Jovian planets can migrate from the orbits in which they are born.
C) In some star systems, it is possible for jovian planets to form in the inner solar system and terrestrial planets to form in the outer solar system.
D) Some of the exceptions to the rules in our own solar system are likely to have been the result of giant impacts.