️☁️ The most abundant gas in Earth’s atmosphere?

Hint: This gas constitutes approximately 78% of the air… →

The most abundant gas in Earth's atmosphere is nitrogen, which constitutes approximately 78% of the air.

Nitrogen is a key component of the nitrogen cycle, where it is converted into forms that plants can absorb and use for growth, helping to sustain ecosystems and agriculture.

Oxygen, essential for respiration in humans and animals, comes next at about 21%, allowing life to thrive. The remaining 1% is composed of other gases like argon, carbon dioxide, neon, and methane. While nitrogen is chemically inert under normal conditions, it plays an essential role in supporting life through its biological cycling in nature. Additionally, carbon dioxide, though present in much smaller quantities, has a significant impact on Earth's climate and is a primary driver of the greenhouse effect.