1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tju [1.3M]
2 years ago
5

The four inner planets are rocky and small . Briefly describe other four outer planets ? ​

Social Studies
2 answers:
insens350 [35]2 years ago
4 0

Answer:

The inner planets are closer to the Sun and are smaller and rockier. The outer planets are further away, larger and made up mostly of gas. The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars.)

Explanation:

In our Solar System, astronomers often divide the planets into two groups — the inner planets and the outer planets. The inner planets are closer to the Sun and are smaller and rockier. The outer planets are further away, larger and made up mostly of gas.

The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars. After an asteroid belt comes the outer planets, Jupiter, Saturn, Uranus and Neptune. The interesting thing is, in some other planetary systems discovered, the gas giants are actually quite close to the sun.

This makes predicting how our Solar System formed an interesting exercise for astronomers. Conventional wisdom is that the young Sun blew the gases into the outer fringes of the Solar System and that is why there are such large gas giants there. However, some extrasolar systems have “hot Jupiters” that orbit close to their Sun.

 

The Inner Planets:

The four inner planets are called terrestrial planets because their surfaces are solid (and, as the name implies, somewhat similar to Earth — although the term can be misleading because each of the four has vastly different environments). They’re made up mostly of heavy metals such as iron and nickel, and have either no moons or few moons. Below are brief descriptions of each of these planets based on this information from NASA.

Mercury: Mercury is the smallest planet in our Solar System and also the closest. It rotates slowly (59 Earth days) relative to the time it takes to rotate around the sun (88 days). The planet has no moons, but has a tenuous atmosphere (exosphere) containing oxygen, sodium, hydrogen, helium and potassium. The NASA MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft is currently orbiting the planet.

The terrestrial planets of our Solar System at approximately relative sizes. From left, Mercury, Venus, Earth and Mars. Credit: Lunar and Planetary Institute

The terrestrial planets of our Solar System at approximately relative sizes. From left, Mercury, Venus, Earth and Mars. Credit: Lunar and Planetary Institute

Venus: Venus was once considered a twin planet to Earth, until astronomers discovered its surface is at a lead-melting temperature of 900 degrees Fahrenheit (480 degrees Celsius). The planet is also a slow rotator, with a 243-day long Venusian day and an orbit around the sun at 225 days. Its atmosphere is thick and contains carbon dioxide and nitrogen. The planet has no rings or moons and is currently being visited by the European Space Agency’s Venus Express spacecraft.

 

Earth: Earth is the only planet with life as we know it, but astronomers have found some nearly Earth-sized planets outside of our solar system in what could be habitable regions of their respective stars. It contains an atmosphere of nitrogen and oxygen, and has one moon and no rings. Many spacecraft circle our planet to provide telecommunications, weather information and other services.

Mars: Mars is a planet under intense study because it shows signs of liquid water flowing on its surface in the ancient past. Today, however, its atmosphere is a wispy mix of carbon dioxide, nitrogen and argon. It has two tiny moons (Phobos and Deimos) and no rings. A Mars day is slightly longer than 24 Earth hours and it takes the planet about 687 Earth days to circle the Sun. There’s a small fleet of orbiters  and rovers at Mars right now, including the large NASA Curiosity rover that landed in 2012.

The outer planets of our Solar System at approximately relative sizes. From left, Jupiter, Saturn, Uranus and Neptune. Credit: Lunar and Planetary Institute

The outer planets of our Solar System at approximately relative sizes. From left, Jupiter, Saturn, Uranus and Neptune. Credit: Lunar and Planetary Institute

The Outer Planets:

The outer planets (sometimes called Jovian planets or gas giants) are huge planets swaddled in gas. They all have rings and all of plenty of moons each. Despite their size, only two of them are visible without telescopes: Jupiter and Saturn. Uranus and Neptune were the first planets discovered since antiquity, and showed astronomers the solar system was bigger than previously thought. Below are brief descriptions of each of these planets based on this information from NASA.

 

USPshnik [31]2 years ago
3 0

Answer:

Gassy and Large

Explanation:

The Outer Planets Mainly consist of Gas and are much larger than the inner planets. This is why they are called "Gas Giants"

You might be interested in
Steven is very different from his parents. His parents are quiet and reserved, but Steven is very outgoing and talkative. Steven
kherson [118]

Answer:

Steven will become close to his ideal self as possible

Explanation:

Carl Rogers was a psychologis and was primarily focused on a person centered approach. His idea was to focus on the needs of the individual instead of the need of a "service". For example, Stephen's parents gave him the opportunity to explore the things that he  found most interesting to him and the things that made him fulfilled rather than what they thought that he needed.

This approach makes it very likely that Stephen will reach his full potential or at least very close to it.

4 0
3 years ago
Read 2 more answers
What kind of drastic changes did the leader of Dubai make?
Yakvenalex [24]
<span>In the 10 years that Sheikh Mohammed bin Rashid has been Ruler of Dubai, the emirate has not only defied a global economic crisis, but emerged from it bigger, better, stronger, smarter – and happier.</span>
3 0
3 years ago
Which section of the United Nations is responsible for promoting international economic cooperation by overseeing the financial
zhannawk [14.2K]
I believe the answer is: B. <span>International Monetary Fund

International monetary fund is created in order to promote financial stability in the world,  prevent global crisis, and help the economic growth in the developing countries. This organization is headquartered in Washington D.C and has 189 countries as its registered members.
</span><span>
</span>
7 0
3 years ago
Read 2 more answers
In the works of the Pre-Socratics, there is obviously the progression from mythopoetic thought to a primitive scientific thinkin
kifflom [539]

Answer:

Arche

Explanation:

These philosophical thinkers were searching for the arche, the source or the the beginning.

These people were searching for the arche in presocratic terms. The arche is a Greek term that means first principle. The arche according to aristotle is the explanatory first principle from which every other thing is formed. According to another philosopher thales, the arche is the source and the beginning

3 0
2 years ago
What did Karl Marx do for sociology
jonny [76]

In sociology, Marx's theories are used to study society through economic systems. ... Conflict theory has been used to examine several aspects of society that are built upon class conflict, which Marx argued were designed to protect the wealthy, not society as a whole.

7 0
3 years ago
Other questions:
  • ​data have shown that people who get more ____ early in the day have lower bmis.
    12·1 answer
  • Six-year-old shirley, a witness to a robbery, was asked to testify at the trial. the defense argued that her testimony would be
    6·1 answer
  • Which of the following are federally insured financial institutions?
    8·2 answers
  • From Susan's readings for class, she learns that most cultures throughout the world condemn the profession of prostitution as ev
    5·1 answer
  • Which is not a power held by any of the three branches of government
    14·1 answer
  • Beyond simply pigeonholing individuals into convenient categories, measuring personality traits can be thought of as having two
    9·1 answer
  • Two modern countries that are located where the Harappan civilizations began are __________.
    15·2 answers
  • Define animus an explain why it was important in Japanese religious
    12·1 answer
  • Any bad habit or excessive behavior can be considered an addiction. A. True B. False
    8·1 answer
  • The attempted ___ failed when the violent mob was unable to overtake the state capitol building.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!