No, you never capitalize earth unless you are talking about it scientifically or next to other heavenly bodies. If you were using it as a sentence such as "We need to go green and save the earth," you would not capitalize it. If you used it in a sentence such as "Jupiter is much bigger than the Earth," you would capitalize Earth.
When you are referring to someone or something whose given personal name is Earth eg the planet on which we live or a book, a painting, a pop group, etc It is not capitalised in a sentence like "He dug the earth" because although the ground is referred to as earth, that is not its given personal name.
no
No it doesn't require to be capitalized.
a round planet with living things on it.
If it's any planet other than Earth, always capitalize it. If you're talking about the planet Earth in an astronomical context, or in any other context where you feel a need to clarify you are specifically talking about Earth and not some other planet, capitalize it. For example: "Temperatures on Earth range from -89°C to 57°C." If you're using the word 'earth' in more of a casual, day-to-day sense, don't capitalize it. For example: "The tree branch broke off in the wind and fell to the earth with a thud."
This is planet Earth, so one Earth day is one day on this planet.
Earth is capitalized when used as a planet such as Earth is the third planet in our solar system. If you are referring just to earth, as in soil, It is not capitalized. The sun warms the earth.
It depends on how you're using it. If you're talking about Earth our planet and home, you capitalize it because it is a proper name. If you're talking about the earth in your garden, you don't capitalize it because it's a descriptive term.
The word "moon" can refer to the natural satellite of any planet. However, when we capitalize it as "Moon", we're referring to Earth's Moon.
A day on Saturn is about 11 hours on Earth.
In most contexts, "earth" is not capitalized unless it is being used as a proper noun, as in "Earth" to refer to the planet. So for your example, it would be correct to say "walk on the earth" with "earth" in lowercase.
Earth is the only planet with a day of 23.9 hours.
It's Mars.
Saving the planeT!@#!@#%
help the planet
Romeo is a person. People live on the planet. The planet is earth. On earth there are two types of day; day and night. Romeo was alive during the day. Therefore he is like the day.