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By a combination of accretion (adding mass by combining) and collision (losing mass by colliding).
The early solar system is believed to have had almost two dozen planetoids inside the orbit of Mars; the four that are left (five, if you count our own Moon) are the lucky survivors of what amounted to a cosmic game of pinball.
What else can I help you with?
Why are the inner planets different to the outer planets?
The inner planets are all considered rocky planets in that under atmospheric layers, they have a rocky surface. The outer planets are made of gas and liquid, and are called gas giants. They have no solid surface. Also, all the outer planets have rings while the inner planets do not.
Which is not true in the inner planets?
The inner planets are closer to the Sun compared to the outer planets, have solid rocky surfaces, and are smaller in size compared to the outer planets.
Are the inner planets rocky or gassy?
The inner planets (Mercury, Venus, Earth and Mars) are rocky. It is the outer planets (Jupiter, Saturn, Uranus and Neptune) that are gas planets.
How are terrestrial planets best described?
Rocky, inner planets.
Is this true or false that the inner plants are gas giants and the outer planets are rocky?
False. The outer planets are gas giants (although they have a solid core). The inner planets are 'rocky'.
How the rocky inner planets were formed?
By "accretion" of "planetesimals" from the "protoplanetary disk".
Are inner planets Rocky?
Th inner planets are rocky because as the Sun and planets formed the more volatile elements could not condense into droplets near to the hot Sun. Thus the inner planets are made form stuff with a high melting/boiling point and the outer planets (where it was cooler) are made from the gases.
Why are the inner planets different to the outer planets?
The inner planets are all considered rocky planets in that under atmospheric layers, they have a rocky surface. The outer planets are made of gas and liquid, and are called gas giants. They have no solid surface. Also, all the outer planets have rings while the inner planets do not.
Which is not true in the inner planets?
The inner planets are closer to the Sun compared to the outer planets, have solid rocky surfaces, and are smaller in size compared to the outer planets.
What do the inner planets consit of?
The inner planets are rocky and the outer planets are gas giants.
What are the rock planets?
The Rocky Planets, or Inner Planets, include Mercury, Venus, Earth, and Mars.
what is another name for the inner planet?
Terrestrial Planets, or Rocky Planets.
Why are the inner planets known as the rocky planets?
they are rocky and have terrain areas the rest of the planets are all gas
Are the inner planets rocky or gassy?
The inner planets (Mercury, Venus, Earth and Mars) are rocky. It is the outer planets (Jupiter, Saturn, Uranus and Neptune) that are gas planets.
What is a another name for the inner planets?
The inner planets are also known as terrestrial planets. This term is used because they have solid rocky surfaces similar to Earth's.
How are terrestrial planets best described?
Rocky, inner planets.
Which planets are rocky in your solar system?
most of inner planets
