Best answer: What is most unusual about Earth compared to the other terrestrial planets?

What is most unusual about Earth, compared to the other terrestrial planets? It has liquid water, plate technics, and an atmosphere. What is evidence that Mars once had running water on its surface? Changes in surface on mars must mean water once ran or still is running on Mars.

What makes Earth different from other terrestrial planets?

Earth is special because it is an ocean planet. Water covers 70% of Earth’s surface. Earth’s atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. The atmosphere also protects us from incoming meteoroids, most of which break up before they can hit the surface.

What makes Earth unique from the other planets?

In the solar system, the Earth is the third planet from the sun, and it is the only planet known to have life. … The ability of the Earth to harbor life makes the Earth a unique planet in the solar system, and this stems from the fact that water in liquid form exists on the planet.

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What are the main differences of the Earth’s atmosphere when compared to other terrestrial planets in our solar system Mercury Venus and Mars )?

Explanation: The main difference between the Earth’s atmosphere and the one of other planets (such as Venus and Mars) is that about 21% of it is composed by oxygen. Oxygen is a key element to sustain any complex life form on the planet.

What are the terrestrial planets?

The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.

Which best describe planets Earth?

Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet.

How do the four subsystems make Earth a unique planet in our solar system?

The geosphere has four subsystems called the lithosphere, hydrosphere, cryosphere, and atmosphere. Because these subsystems interact with each other and the biosphere, they work together to influence the climate, trigger geological processes, and affect life all over the Earth.

How is the atmosphere of the Earth different from that of other planets Class 9?

Our atmosphere is about 78% nitrogen and 21% oxygen, with traces of water and carbon dioxide. … Earth is the only planet where Oxygen in found in adequate quantities. The earth also has a blanket of clouds which trap and releases heat maintaing the temperature of the Earth.

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Which planet has similar atmosphere to Earth?

Venus is often named as Earth’s twin because both worlds share a similar size, surface composition and have an atmosphere with a complex weather system. The figure on the right compares Venus and Earth spacecraft images.

How is Earth atmosphere different from that of Venus and Mars?

How is our atmosphere different from the atmospheres on Venus and Mars? Answer: Earth’s atmosphere is a mixture of nitrogen (79%), oxygen (20%), and a small fraction of carbon dioxide, water vapours and other gases. … However, the atmospheres on Venus and Mars mainly consist of carbon dioxide.

How are the terrestrial planets similar?

All terrestrial planets have approximately the same type of structure: a central metallic core composed of mostly iron, with a surrounding silicate mantle. … Terrestrial planets are also known for having few or no moons. Venus and Mercury have no moons, while Earth has only the one (the Moon).

How are terrestrial planets formed?

Terrestrial Planet Formation

Hydrogen compounds, such as water and methane, typically condense at low temperatures, and remain gaseous inside the frost line where temperatures are higher. … Thus, the inner planets are made almost entirely of rock and metal and form the group known as the terrestrial planets.

Which terrestrial planet is most like Earth?

Venus and Mars are the most like Earth, but in different ways. In terms of size, average density, mass, and surface gravity, Venus is very similar to Earth.