The sun is a source of energy for life on Earth.

Meaning: This sentence describes the sun's role in providing the energy necessary for life on Earth.

Choice of Words: Source is something that provides something else. Energy is the ability to do work. Life is the existence of an organism.

Alternative Expressions

The sun is a star.

Meaning: This means that the sun is a big, hot ball of gas that makes its own light and heat.

Choice of Words: The sun is a specific object in the sky that we can see and feel. Is is a verb that means to be or exist. A star is a large, hot ball of gas that produces its own light and heat. When we put them together, "The sun is a star" means that the sun is a type of star.

The sun is a source of energy.

Meaning: This means that the sun gives us the power to do things, like grow plants and make electricity.

Choice of Words: The sun is a specific object in the sky that we can see and feel. Is is a verb that means to be or exist. A source is something that provides or gives something else. Of energy means that the sun provides energy. When we put them together, "The sun is a source of energy" means that the sun gives us energy.

The sun is important for life on Earth.

Meaning: This means that the sun is very important for us and other living things to stay alive on Earth.

Choice of Words: The sun is a specific object in the sky that we can see and feel. Is is a verb that means to be or exist. Important means that something is necessary or has a lot of value. For life means that something is needed for living things to survive. On Earth means that something is located on our planet. When we put them together, "The sun is important for life on Earth" means that the sun is necessary for living things to survive on our planet.

Related Expressions