Author Question: What is the process of accretion? A) the separation of materials in a protoplanet by density, ... (Read 79 times)

Kikoku

  • Hero Member
  • *****
  • Posts: 540
What is the process of accretion?
 
  A) the separation of materials in a protoplanet by density, with dense material in core
  B) growth of an object by the accumulation of matter
  C) the breakup of large objects by violent collisions with other similar-sized objects
  D) the period of time during which the Sun swept away all the excess material in the solar nebula
  E) the process by which the solar nebula became heated during its collapse

Question 2

Venus and Mars probably evolved differently from Earth because
 
  A) they are slightly bigger than Earth.
  B) they are more massive than Earth.
  C) they have thicker atmospheres than the Earth.
  D) they formed sooner than Earth.
  E) they orbit at different distances from the Sun.



ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

B

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

For a complete list of videos, visit our video library