The earliest humans to reference the ground called it earth (in their languages, of course). Over time, this has spread to reference the entire planet, rather than just the ground in one spot.
Other popular names include Terra Firma and Gaia.
Earth!
Planet Earth
The earth is also called the blue planet because almost 3/4 of the earth is covered with water.
Today, we call our planet, 'earth', just as we call the ground we walk on and the soil we dig, 'earth'. But earth did not have a planetary name in the Bible, because the biblical authors did not know that it is a planet. ANSWER: In the Old Testament, Earth was referred to as the Firmament.
The Earth's atmosphere.
Earth. Scientist were almost about to call earth "Water" instead. The earth is the watery planet because it is has 2/3 of the ratio water/land. Hoped that Helped!!
the planet earth is big and has alot of people on it.
the people on it
on the planet earth
earth
All I can think of is that Venus is sometimes called Earth's "sister planet, or twin planet".
Earth