AnswersAZ-Earth and Space Science AThe Earth-Sun-Moon System

The Earth-Sun-Moon System Answers

10 verified answers
1
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Use the information from the article to answer the question.Asteroids and CometsWhich statements describe the characteristics of asteroids? Select three options.

A
formed 4.6 billion years ago
B
orbit the Sun beyond Jupiter
C
range in size from a few miles to more than 300 plus miles across
D
have a total mass greater than the mass of the moon
E
most are found in the asteroid belt
2
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Use the information from the article to answer the question. Asteroids and CometsWhich statement best explains the location of the asteroid belt?

A
Most asteroids can be found between Mars and Jupiter.
B
The formation of the solar system produced planets as well as asteroids orbiting the Sun.
C
The gravitational pull of the Sun brought all asteroids in the solar system together in one area.
D
The size of asteroids caused them to orbit the Sun at a similar distance.
7

Use the information from the article to answer the question.MeteorsWhich statements apply to meteors?

A
Meteors are bits of material falling through Earth's atmosphere.
B
Meteor showers are associated with asteroids.
C
Meteors create a streak of light.
D
The largest meteor found has a mass of 54,000 kg.
E
Meteor showers occur in the autumn and winter.
10

Use the information from the article to answer the question.PlutoWhy is Pluto now called a dwarf planet?

Answer:

Pluto is now classified as a dwarf planet because the discovery of the object Eris in 2003 led astronomers to redefine the characteristics of a planet. They determined that due to Pluto's size and location (specifically its failure to clear its orbital path of other objects), it does not meet the criteria for a major planet and is instead categorized as a dwarf planet along with Eris.

11

Which did you include in your answer? Check all that apply.

A
In 2003, astronomers discovered Eris.
B
The discovery of Eris caused astronomers to talk about the defining characteristics of a planet.
C
Because Pluto has not cleared its orbit, it is not considered to be a planet.
D
Pluto, Eris, and other objects like them are now classified as dwarf planets.
19

Which statement describes the Oort cloud?

A
It is shaped like a donut.
B
It contains huge icy objects.
C
It is home to short-period comets.
D
It is about 1,000 AU from the Sun.

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