Yes, in at least somewhat dark skies, you can see Venus as a larger 'star' than the others. You can also sometimes see Mars, but it must be much darker because it is farther from the sun, and therefore is colder, giving off less light.
Yes..because without planet earth do any thing life exist
Saturn has three main rings. You need a telescope, but they are visible in a small telescope.
Yes..because without planet earth do any thing life exist
Mercury is the most unlikely to be viewed because of its proximity to the sun, but it can be viewed with special equipment, like a light filter. All outer planets can be viewed with a telescope depending on the planets position relative to Earth.
Six planets are visible from Earth without any optical equipment except your eyes.
The planet you are referring to is likely Kepler-452b, which is located about 1,400 light-years away from Earth. It was discovered by NASA's Kepler Space Telescope and is considered a "cousin" to Earth due to its potential habitability.
Any telescope that you own, or can borrow, or rent, or on which you can be assigned time for your research.
No, Earth is a planet orbiting the Sun.
All of them Without a telescope: Mercury, Venus, Mars, Jupiter, Saturn and on a very good night Uranus. With a telescope: All of the above plus Neptune.
No
No Earth-like planets have been discovered yet, but our best telescopes are (so far!) incapable of locating any extra-solar planets that small. With the launch of the James Webb Space Telescope, this may change.
Without extensive support and equipment, not in our solar system