It's not. It just happens to be the only planet with legitimate life or any life for that matter.
moon is the most important causing the seasons on earth.
there aren't any planets on earth, all the planets are in space, but the most important planet to us or the most useful is earth..
weena
Which is the most important and abundant carbon-fixing enzyme on earth
the sun
Mr. Droski
Earth
the most important level of food to all life on earth is the producer. things like grass.
Earth's tilt and Earth's rotation
The 2 most important alkaline earth metals are Calcium and Magnesium
Nitrogen is the most common gas in the earth's atmosphere (air is the name of that gas mixture).
The most important star for Earth is the Sun. It provides heat and light, which are essential for life on our planet. Without the Sun, Earth would not have the necessary conditions to support life as we know it.