Why does Mercury have almost no atmosphere?Mercury spins on its axis too fast to have an atmosphere.Radiation

Why does Mercury have almost no atmosphere? Mercury spins on its axis too fast to have an atmosphere.
Radiation from the Sun blows the atmospheric particles off into space.
Mercury's gravity is too weak to hold an atmosphere.
Mercury orbits the Sun at such high speed that the atmosphere is blown away.

Related Posts

This Post Has 10 Comments

  1. full of evil and daring racing with joy giddy with unhealthy happiness full of merriment  

    “Mirth,” by definition means happiness.  Thus, if one is mirthful, one is full of happiness (or cheer).  The word “mirthful” appears one time in this excerpt in the line, “His heart was mirthful to excess.”  Thus, readers would typically begin to believe this person’s heart was filled with joy.  However, what immediately follows in the next line is an explanation as to what exactly mirthful means in this instance—“But the Rover’s mirth was wickedness,” which is a meaning that lies in stark contrast to what mirthful typically means.  As such, the Rover’s heart was apparently “overflowing” with evil and wickedness.

  2. There are two main reasons. First, Mercury is small and doesn't have much gravity so it's hard to hold onto an atmosphere. Second, Mercury is close to the Sun so any atmosphere gets blasted away by stuff being blown off the Sun.


    Because Mercury has no atmosphere, it can't hold onto its heat very well. The night side of Mercury gets very cold, which brings down the average temperature of the planet and makes it only the second hottest planet in the Solar System after Venus.

  3. The word perilous has a stronger connotation to emphasize that there is a risk of death


    Perilous, even by definition, means "off of danger or risk". Which, by itself, is already more than just "dangerous". Also, another meaning that the word possesses is: "exposed to imminent risk of disaster or ruin" and knowing that, you can see how perilous might make it sound or feel even more dangerous or ominous than just "risky".

  4. The imagery of Sir Ralph's reaction affects the mood of this stanza by creating an anguished mood. The correct answer is C.


    In this stanza, the author uses words such as despair which shows how dramatic the scene is. Sir Ralph seems to react in a very bad way and the movement the phrases "the waves rush in on every side" and "the ship is sinking" give the excerpt create a very rough, sad mood.

Leave a Reply

Your email address will not be published. Required fields are marked *