Biology Forums - Study Force

Olympus Mons is the tallest (volcanic) mountain in the entire solar system. Explain how Mars can have mountains taller than the ones on Earth.
 
  What will be an ideal response?

Question 2

How do we learn the chemical composition of the interstellar medium?
 
  A) We make an educated guess based on the Sun's composition.
  B) By studying spectra of interstellar gas clouds.
  C) We collect samples of gas and dust from interstellar space.
  D) We use computer simulations of the interstellar medium.

Question 3

All the planets in the solar system rotate in the same direction as they orbit the Sun.
 
  Indicate whether the statement is true or false

Question 4

Which statement is not thought to be true of all comets in our solar system?
 
  A) Comets always have tails.
  B) All comets are icy in composition.
  C) All comets orbit the Sun.
  D) All comets are leftover planetesimals that originally condensed beyond the frost line in the solar nebula.

Question 5

To explain retrograde motion as well as changes in planetary brightness, Ptolemy's model used ________.
 
  Fill in the blank(s) with correct word

Question 6

Based on its orbit, give two reasons to revoke Pluto's planetary status.
 
  What will be an ideal response?

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