Answer #1:
Mecury and Mars, because Mecury has 38% and Mars has 38%, so Mecury
and Mars it is.
=========================
Answer #2:
ALL planets "have gravity". So do all stars, comets, asteroids, meteoroids, stones,
raindrops, people, dogs, and snowflakes. Everything with mass "has gravity".
Uranus and Neptune are two outer planets that are similar in size. Both planets are known as ice giants and are similar in diameter and mass.
Saturn and Jupiter both large gas giants
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 similar in size and density. Venus is only a little smaller and lighter, and both have similar gravity. This is why Venus is sometimes called 'Earth's Twin.' However, Venus has an atmosphere 100 times thicker than Earth and surface temperatures that are extremely hot. Venus has no life or water as Earth does.
Mercury and Mars are the two planets that are almost the same size in our solar system. Both planets have a similar diameter, with Mercury being just slightly smaller than Mars.
Uranus and Neptune are two outer planets that are similar in size. Both planets are known as ice giants and are similar in diameter and mass.
Saturn and Jupiter both large gas giants
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 similar in size and density. Venus is only a little smaller and lighter, and both have similar gravity. This is why Venus is sometimes called 'Earth's Twin.' However, Venus has an atmosphere 100 times thicker than Earth and surface temperatures that are extremely hot. Venus has no life or water as Earth does.
Uranus and Neptune have similar mass and size. Venus and Earth are actually not as close in terms of mass. Neptune is the heavier of the two gas giants, the ratio of their masses is 0.87, while the mass ratio of Venus to Earth is only 0.82.
Venus and earth
Venus and Earth are similar in size. Uranus and Neptune are also of a similar size, but both much larger than Earth and Venus.
• an atmosphere (though with different chemicals in them) • CO2 • a surface (they're terrestrial planets) • mass (though their masses are different) • volcanoes • greenhouse effect • craters
Mercury and Mars are the two planets that are almost the same size in our solar system. Both planets have a similar diameter, with Mercury being just slightly smaller than Mars.
Venus and Earth are the two planets that are most alike in terms of size and composition. They are similar in mass, density, and have a similar rocky composition. However, Venus has a harsh environment with extreme temperatures and a thick, toxic atmosphere, unlike Earth.
Density is a quantity shared by objects with mass and volume. Volume is the ratio of density to mass, whereas mass is the product of volume and density. Earth and Venus are two planets with similar mass and volume. Venus is slightly smaller.
Us & Venus. Gotta love those Venusians.