When we are lucky enough to see an extra-solar planet transit its ...

[mmm]

When we are lucky enough to see an extra-solar planet transit its star,
 
  A) it will cause the star to vanish for several hours.
  B) we can find the planet's size, mass, and density by the drop in light.
  C) we can determine what elements are in its atmosphere.
  D) we can determine its shape.
  E) we can be certain it is a terrestrial, not a jovian.

Question 2

How did the Miller-Urey experiment attempt to recreate early conditions on Earth?
 
  What will be an ideal response?

[morrie123456]

Answer to Question 1

B

Answer to Question 2

They combined gasses thought to be presents in Earth's early atmosphere and passed an electrical discharge through it to simulate lightning.

[mmm]

TY

[morrie123456]

You're welcome