The reason that the atmosphere of Venus is over 95 carbon dioxide is thought to be because:
A) Venus was much hotter than Earth when its atmosphere formed.
B) the early plant life on Venus produced the excess carbon dioxide and consumed the oxygen.
C) life on Earth formed earlier than on Venus.
D) the part of the solar nebula where Venus formed contained more carbon dioxide than the part where Earth formed.
E) Venus' Greenhouse Effect got out of control and became runaway after its oceans of sulfuric acid evaporated.
Question 2
The angular separation of two stars is 0.1 arcseconds and you photograph them with a telescope that has an angular resolution of 1 arcsecond. What will you see?
A) The two stars will appear to be touching, looking rather like a small dumbbell.
B) The stars will not show up at all in your photograph.
C) The photo will seem to show only one star rather than two.
D) You will see two distinct stars in your photograph.
Soil and the Carbon Cycle
Venus fly trap
Composition of the Atmosphere
Carbon Dioxide, Trace Gases, and Climate Change
El Niño demonstrates the atmosphere-ocean connection
Coal pollutes the atmosphere