The Earth and Venus.
Mercury and Venus are the two inner planets most alike in size, mass, and density. They are both relatively similar in size, with Mercury being slightly smaller but denser than Venus.
Venus and Earth are the most alike in terms of size, composition, and proximity to the sun. Both planets have similar densities and rocky surfaces. Venus is often referred to as Earth's "sister planet" due to these similarities.
The inner and outer planets are alike in that they are all part of our solar system and orbit around the Sun. They also have varying sizes and compositions, with the inner planets being smaller and rocky while the outer planets are larger and gaseous. Additionally, they all have moons, but the outer planets tend to have more and larger moons compared to the inner planets.
The two most prevalent elements on Jovian or gas planets like Jupiter and Saturn are hydrogen and helium. These elements make up the bulk of their composition, with hydrogen being the most abundant element in their atmospheres.
The Earth and Venus.
Mercury and Venus are the two inner planets most alike in size, mass, and density. They are both relatively similar in size, with Mercury being slightly smaller but denser than Venus.
Venus and Earth are the most alike in terms of size, composition, and proximity to the sun. Both planets have similar densities and rocky surfaces. Venus is often referred to as Earth's "sister planet" due to these similarities.
The two inner planets that are most alike in size, mass, and density are Venus and Earth. Both planets have similar diameters, with Venus being about 95% of Earth's size, and their masses are also comparable, with Venus having about 81.5% of Earth's mass. Additionally, their densities are quite similar, reflecting their rocky compositions. This makes them the closest in terms of physical characteristics among the inner planets of the solar system.
they are alike in the way that they are solid not gaseous and that they are relitivly small.
None of the inner planets are alike - they are all different in their own sweet way.
their all gas planets
They're both planets.
The answer depends on which planets "these" refers to.
They all have alike materials and rocky cores.
Both have rings and are outer planets.
They are alike because they are both called planets, both terrestrial planets and gas giants are spheres, all have a somewhat dense core and lastly all orbit around the sun.