Vincent The "Rare Earth" hypothesis of Peter Ward and Donald Brownlee is the idea that Select one: A. rocky planets like the Earth are uncommon in the galaxy. B. life is unlikely to develop on other planets because of the improbability of the events needed to form the first living cell. C. the evolution of advanced life and civilizations is unlikely to occur elsewhere, because it depends on a number of special features of our planet that have provided a stable and safe environment. D. evolution is dominated by chance, and so is likely to unfold quite differently on another planet, and unlikely to result in human-like intelligence.
To measure the radial velocity of a star using a telescope we would use which of the following instruments? Select one: A. an imaging CCD camera to measure its changing position B. a spectrograph to measure its Doppler shift C. a photometer D. a heliometer
When the Sun completes it evolution its core will be composed mostly of Select one: A. hydrogen and helium B. helium C. carbon D. iron
The four giant (or Jovian) planets in our solar system all share the following properties [CHECK ALL THAT APPLY] Select one or more: A. A system of many satellites B. An atmosphere composed mostly of carbon dioxide C. Much lower densities than the terrestrial planets D. Rapid rotation with periods of less than a day
