- What are the two things that impact the density of water(and thus convection)
- What were the benefits and challenges of the advancement from being aquatic to terrestrial(land)?
- Which way do trade winds go during La Nina and what is the temperature like in the intercontinental US?
- Scientists think it is very unlikely that complex and large forms of life could evolve on planets that orbit stars that are much more massive than the Sun. Why?
- According to current scientific understanding, the idea that the Milky Way Galaxy might be home to a civilization millions of years more advanced than ours is
- As the mass of the central star increases, the distance to the habitable zone __________ and the size (width) of the habitable zone __________.
- Which of the following worlds is not considered a candidate for harboring life? Europa, Mars, the Moon.
- The amount of energy that would be needed to accelerate a large spaceship to half the speed of light is
- Given that the fossil record provides the key evidence for evolution, what is the importance of Darwin's theory of evolution?
- Lower mass main-sequence stars are more or less luminous than higher mass stars?
- How does the habitable zone around a star a star of spectral type G compare to that around a star of spectral type M?
- Suppose that our Sun was cool enough to include Mercury in its habitable zone. Which planets would be included in the habitable zone in this case?
- According to current understanding, the key requirement for life is
- Which of the following is a reason why early living organisms on Earth could not have survived on the surface?
- As wavelength increases, the energy of a photon __________ and its frequency __________.
- Governmental agency watching the sky for near earth asteroids.
- In 1801, Giuseppe Piazzi discovered the first asteroid. He named it _________
- Scientist now believe that there are two major regions beyond Neptune. What are these two regions called?
- How many comets have been found in the Solar System?
- On its current path this planet will collide with the Sun. Without changing the mass how could you stabilize its orbit? Hint: There may be more than one way to do it :)