Answer:

1.Mercury

The planets: The many worlds of our solar system

The inner four planets closest to the sun — Mercury, Venus, Earth and Mars — are often called the "terrestrial planets" because their surfaces are rocky. Pluto also has a rocky, albeit frozen, surface but has never been grouped with the four terrestrials.

3.Venus

So then, what planet gets closest to Mercury in orbit. The answer, of course is Venus, the 2nd closest planet to the Sun. Venus orbits at an average distance of 108.2 million km.

4.250.69 million km.

5.Jupiter

Jupiter is the biggest planet in our solar system. Its diameter measures 142,800 km. It is so gigantic that all other planets in the solar system could fit into Jupiter. It is the fifth planet from the sun.

6.The characteristics that the outer planets have in common include their large size and their large number of moons when compared with the inner, or terrestrial, planets. They also lack solid surfaces, and as far as astronomers know, none are capable of supporting life.

7.Because uranus and Neptune are so similar in mass, diameter, and rotation rate that they are often called "twin planets." Their axial tilts, however, are very different. Neptune's is similar to the Earth's, but Uranus's is so greatly tilted that its pole lies almost in its orbital plane.

8.Low-mass planets are poor candidates for life for two reasons. First, their lesser gravity makes atmosphere retention difficult. Constituent molecules are more likely to reach escape velocity and be lost to space when buffeted by solar wind or stirred by collision.

9.And, like the North Star, the Sun does not move a lot in the sky due to the rotation of the planet (for Earth 24 hours, for Uranus 17 hours.), thus no rise or set in the usual sense of the word as here on the Earth. For a moment let's assume that the Uranus has a perfect tilt of 90 degrees instead of 98 degrees.

10.No, the planet Neptune is not visible without a telescope from Earth. Due to the distance of Neptune away from Earth, Neptune can only be viewed with high powered telescopes. ... As mentioned, that means that Neptune's distance from the Sun is thirty times the distance between the Earth and the Sun.

Explanation:

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Answer:1.) mercury

3.) Venus

4.)250.69 km

5.)Jupiter

6.) the four outer planets are all gas giants made primarily of hydrogen and helium

7.) because uranus and neptune are so similar in mass diameter and rotation rate

8.) low mass planets are poor candidates for two reasons first there lesser gravity makes atmosphere attention difficult constituent molecules are more likely to reach escape velocity and be lost to space when buffeted by solar wind or steered by collisions.9.) like the north star the sun does not move a lot in the sky due to rotation of the planet no rice or set in the usual sense of the world as here on the earth for a moment that assume that the uranus has a perfect tilt of 90 degrees instead of 98 degrees.

10.) the planet neptune is not visible without a telescope from earth due to the distance of neptune away from earth neptune can only be viewed with high-powered telescope as mentioned that means that neptune distance from the sun is 30 times the distance between the earth and the sun. (HOPE IT HELP