Question

The Sun is in the center of Solar System and is composed mainly of the elements (1) and (2). The distance from the Earth to the Sun is also called (3). Many people dream about building a colony on Mars, but the atmosphere is primarily made of (4). We have discovered the (5) between Mars and Jupiter, which contains millions of small objects. Jupiter has a total of (6) moons: The four largest moons are easily visible with a telescope and(7) is the closest and most active one. Uranus and Neptune are the outermost planets and it takes Neptune (8) years to complete one orbit around the Sun.

Answer 1

Helium and hydrogen gas, Astronomical unit, Carbon dioxide, asteroid belt,  67 known moons, Galilean moons as Io, Europa, Ganymede and Callisto,  Io is the most active, 164.8 years.

Explanation:

• The sun is a star and is made of the helium and hydrogen gases, and lies in the center of the solar system.  

• The distance of the earth to the sun is called the astronomical unit, and is the unit length and is roughly 150 million km from the earth to the sun.

• Mars atmosphere is made of 95.3 % of carbon dioxides and Nitrogen is 2.7% and oxygen is 0.174% .  

• The asteroid belt is a region in the region in the solar system that is roughly between the solar system and is much smaller than planets.

• The four major moons of the Jupiter that can be seen from the telescope are Io, Europa, Callisto, and Ganymede.  

• Most active of them is the Io which has active volcanoes and Neptune takes about 164.8 years to complete one revolution around the sun.

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• brainly.in/question/16473810 answered by Pheck0yt.