Yes, as far as we know, the elements, composed of the same types of atoms, are the same everywhere.
The moon is not a planet.
no it is lower
They are all gaseous.
Other than Pluto, they are all made of gas.
the answer is Venus, and Earth
The other planets are not similar to dwarf planets.
The other planets are not similar to dwarf planets.
venus
no
Because of same chemical configuration. Both are similar to each other.
in term of shape
The moon is not a planet.
Stars seem to be, but they don't have big and/or unstable atoms such as most radioactive elements have. They release sub atomic units when their atoms fuse, along with rays such as gamma rays, which is why they can seem to be similar to other radioactive things. Some planets with atmostpheres that are ionised by ionising rays can also be similar to radioactive things perhaps.
Astronomers have found Earth-sized planets in other solar systems.
no it is lower
They live in conditions similar to those likely to be found on other planets.
Just like many other things, planets are made out of atoms.