This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Venus and Mars probably evolved differently from Earth because: A) they are slightly bigger than ... (Read 61 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
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.

Question 2

Define emission lines.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lcapri7

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 27, 2018
Answer to Question 1

E

Answer to Question 2

A hot, thin gas cools off by emitting photons, but only at discrete wavelengths determined by the electron transitions downward of the component atoms. These appear as a pattern of bright emission lines, such as from M-42 in Orion.


tth

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

miss.ashley

  • Member
  • Posts: 371
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Global view of Mars as seen by the Viking 1 orbiter in 1980, showing the Valles Marineris (center) Global view of Mars as seen by the Viking 1 orbiter in 1980, showing the Valles Marineris (center)
Volcanic plateaus (red) and impact basins (blue) dominate this topographic map of Mars Volcanic plateaus (red) and impact basins (blue) dominate this topographic map of Mars
The Changing Appearance of Venus The Changing Appearance of Venus
Lightning on Earth Lightning on Earth
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
Earth’s Revolution Earth’s Revolution
Video: Transferring genes into plants Animation

For a complete list of videos, visit our video library