Earth is the only planet known to support life.

Meaning: Earth is the only planet in our solar system that is known to have conditions that allow living things to exist.

Choice of Words: Earth is the name of the planet we live on. Only means being the sole or exclusive one. Support means to provide what is needed for something to exist or function. Life is the existence of an organism.

Alternative Expressions

Earth is the only planet we've found that can sustain life.

Meaning: This means that Earth is the only planet we know of that has the right conditions for life to continue to exist and thrive.

Choice of Words: **Sustain** means to keep something going or to provide what it needs to survive. **Life** is all living things, like plants, animals, and people.

Earth is the only planet in our solar system that can support life as we know it.

Meaning: This means that Earth is the only planet in our solar system that has the conditions necessary for the kind of life that we are familiar with to exist.

Choice of Words: **Solar system** is the group of planets, moons, and other objects that orbit our sun. **Life as we know it** refers to the kind of life that we are familiar with, like plants, animals, and people.

Related Expressions