Assertion A The density of the large outer planets of the solar system is very low Reason R The larg...........

World Geography (Easy) Space

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Assertion (A): The density of the large outer planets of the solar system is very low.

Reason (R): The large outer planets consist of substances like hydrogen, helium and hydrogen compounds.

Both A and R are individually true and R is the correct explanation of A.

Both A and R are individually true but R is not a correct explanation of A.

A is true but R is false.

A is false but R is true.

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Explanation:

A is true but R is false.
Outer Planets are Jupiter, Saturn, Uranus, Neptune and the dwarf planet – Pluto. The four outer planets, called the gas giants, collectively make up 99% of the mass known to orbit the Sun. They are composed mainly of hydrogen & helium & lack a solid surface. Their moons are, however, solid. The two outermost planets, Uranus and Neptune, are composed of substances called ices, such as water, ammonia and methane, and are often referred to separately as “ice giants”. All four gas giants have rings, although only Saturn’s ring system is easily observed from Earth.