Question

1-Which of the following statements is not a description of Saturn?

Answer 1

1-Largest planet in the solar system
2-Has no moons
3- True
4-They orbit the sun
5- Earth
6-They orbit the sun.

Answer 2

Answer:

1. Largest planet in the solar system.

2. Has no moons.

3. True

4. Most of them lie in a belt between Earth and Mars.

5. Earth

6. The orbital period of planet A is shorter than that of Planet B.

Explanation:

1. Saturn is the second largest planet of the solar system. It is a gaseous planet which is known as the Ringed planet because of the beautiful ring system which are visible from Earth through telescope. It has several moons - more than 60 moons.

2. Mars is known as red planet. It is the fourth planet from the sun. It is one of the rocky planets having very thin atmosphere. It has two moons - Phobos and Deimos.

3. From Kepler's first law of planetary motion we know that planets move around Sun in an elliptical orbit with sun at its foci. Thus, the given statement is true.

4. Asteroids are irregular shaped and sized rocky objects orbiting sun . These are thought to be remains of  a never formed planet between Mars and Jupiter. Thus, majority of the asteroids are found between the orbits of these two planets.

5. There are four terrestrial planets ( Mercury, Venus, Earth and Mars). The terrestrial planets have the following layers- the core, the mantle and the crust. Out of these four planets- the Earth has the smallest inner core.

6.  From Kepler's laws about planetary motion, we know that the planet closer to the Star moves with greater orbital speed and thus has shorter orbital period than the rest. Here, planet A is closer to the star than planet B. Thus, planet A would have shorter orbital period than planet B.