Question

Write the two special features of each planet.
1. Mars
2.
Earth
3. Mercury
4. Neptune
5.
Uranus
6.
Venus
7. Jupiter
8. Saturn​

Answer 1

Many of the physical processes that operate on Earth are found throughout the solar system. The same laws of physics apply to planets, stars, and galaxies throughout the universe. The silent videos below highlight the diversity of planetary charateristics in our solar system as seen from telescopes on Earth and in space.

Surfaces:-

Many forces shape the solid surfaces of planets and moons. Initially hot, some of these surfaces fractured as they cooled, creating great chasms. Impacts produce craters and can release molten flows beneath the surface. On Earth, continental plates move continuously, forming ocean basins and mountains. Water, ice, wind, and volcanoes both erode and create surface features.

Ring systems:-

All of the gas giant planets—Jupiter, Saturn, Uranus, and Neptune—have rings. Saturn has thousands of brightly reflective rings, whereas the others have just a few dark rings. Rings are made of ice or rock particles ranging up to house-size boulders. Collisions among particles keep the rings extremely thin. Rings may be left over from a planet’s formation, or they may be debris from the destruction of moons.

Moons:-

The more than sixty moons of the solar system are a diverse collection of worlds. Two are larger than the planet Mercury. Some have ancient cratered surfaces, while others are geologically active. Many smaller moons appear to be asteroids or comets captured by the gravity of their planet.

Atmospheric storms:-

Great atmospheric storms occur on all the gas giants. The rapid rotation of these planets stretches weather systems into zones that encircle them. High winds blow in opposite directions at the edges of the zones and feed energy into enormous rotating storms. Though they resemble Earth’s hurricanes, these storms are far more powerful and up to a hundred times larger.

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Answer 2

Answer:

1. Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being only larger than Mercury. In English, Mars carries the name of the Roman god of war and is often referred to as the "Red Planet".

1. Mercury is the closest planet to the sun. It rotates slowly — about twice for every three orbits it completes. Its cratered surface can experience temperatures upwards of 800 degrees Fahrenheit (426.7 degrees Celsius) because of its proximity to the sun.

1. The second planet from the sun, Venus is slightly smaller than Earth. Because of its relative proximity to Earth, it is the largest planet seen in the night sky. The cratered surface is hot with surface temperatures around 900 F (482 C), the product of a runaway greenhouse effect.

1. Earth, the third planet from the sun and the largest terrestrial planet, is the only planet known to host living beings and the only one known to have liquid water on its surface. The atmosphere, made of mostly nitrogen, oxygen and carbon dioxide, is crucial to Earth's ability to support life.

1. Further from the sun, past a ring of asteroids, lies the largest planet in our solar system — Jupiter — the first of the gas giant planets. Its characteristic colored cloud patterns are caused by enormous, swirling storms in its atmosphere, which consists of primarily of hydrogen, helium, methane ammonia and water ice.

1. Saturn, the sixth planet from the sun, is also a gas giant, and it's most impressive feature as seen from afar is an extensive and complex ring system. The rings orbit the planet in a thin band about a mile thick. The radius of Saturn is about 9.5 times that of Earth, and instead of one paltry moon, it boasts 62.

1. While most planets spin on their axis with a slight tilt, the ice giant Uranus spins on an axis parallel to its orbit. With a diameter of 31,518 miles (50,723 kilometers), this cold planet is four times the size of Earth and is made of a large atmosphere of methane with a dense core of frozen methane. Uranus has a faint ring system and 27 moons in its orbit.

1. The blue planet Neptune is the farthest one from the sun and, like Uranus, is a very cold place. Its surface temperature is a chilly -353 F (-214 C). Because of its distance from the sun and its large orbit, one year on Neptune is 165 Earth years.

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