Iâve come up with fewer reasons for giving a child a cell phone earlier, but at least two of them are enough to offset a multitude of others. Keeping tabs on them. As each year passes in a childâs life they venture farther from home and for longer periods of time.
Like the inner planets, the outer planets have similar characteristics to one another. The outer planets are so much larger than the inner planets that they make up 99 percent of the mass of the celestial bodies that orbit the Sun. Although mainly composed of gas, the outer planets also have other ingredients.
Confidence votes 55. The outer of the planets are made mostly of gases like hydrogen, helium and nitrogen. 1  The Gas Giants-Jupiter and Saturn are composed of mainly hydrogen and helium. 2  The Ice Giants-Uranus and Neptune are composed of hydrogen and helium but have much more methane and ices.3  they are all made of liquid, too.onfidence votes 55. The outer of the planets are made mostly of gases like hydrogen, helium and nitrogen. 1  The Gas Giants-Jupiter and Saturn are composed of mainly hydrogen and helium. 2  The Ice Giants-Uranus and Neptune are composed of hydrogen and helium but have much more methane and ices.