Explain how crater counts allow us to estimate the ages of ...

[KimWrice]

Explain how crater counts allow us to estimate the ages of surfaces throughout the solar system.
 
  What will be an ideal response?

Question 2

A 10-solar-mass main-sequence star will produce which of the following remnants?
 
  A) white dwarf
  B) neutron star
  C) black hole
  D) none of the above

[Qarqy]

Answer to Question 1

Craters are the rule...everybody was a target in the early days of accretion. The longer the surface has sat without internal deformation, the more impacts have cratered the surface. If craters are absent, it is because other processes, such as lava flows or erosion, have replaced the older cratering.

Answer to Question 2

B