Document for Air and Water

Air:
- Air is a mixture of gases that surround the Earth.
- It is composed of mainly nitrogen (78%) and oxygen (21%), with small amounts of other gases such as carbon dioxide and argon.
- Air is essential for life as we know it, providing the oxygen needed for humans, animals, and plants to survive.
- It is also important for weather patterns and climate regulation.

Water:
- Water is a compound made up of two hydrogen atoms and one oxygen atom (H2O).
- It exists in three states - solid (ice), liquid (water), and gas (water vapor).
- Water is essential for all living organisms, serving as a solvent for nutrients, a medium for chemical reactions, and a means of transport within organisms.
- It is also crucial for various everyday activities such as drinking, cooking, cleaning, and agriculture.

Overall Importance:
- Both air and water are vital resources for life on Earth.
- They play key roles in maintaining ecosystems, supporting human health and well-being, and sustaining various industries.
- It is important to conserve and protect these resources to ensure a healthy environment for present and future generations.