Vocabulary Entry

nitrogen

|noun

noun

A colorless, odorless gas that is essential for life, making up about 78% of the Earth's atmosphere and is used in various chemical processes.

Example Sentences

"Nitrogen is a key component of amino acids, which are the building blocks of proteins."

"Plants need nitrogen to grow, so farmers often use fertilizers that contain it."

"The nitrogen cycle describes how nitrogen moves through the environment."