Photosynthesis is a natural process by which trees and plants use energy from the sun and carbon dioxide from the air to make the food they need to live and grow. At the same time, the leaves or needles absorb carbon dioxide from the air. These raw materials flow to plant cells containing chlorophyll.

For photosynthesis to take place, plants need to take in carbon dioxide (from the air), water (from the ground) and light (usually from the sun).

Air is important for living things. People need to breathe, and so do lots of other animals—and plants! During respiration, a living thing takes in oxygen from the air and gives out carbon dioxide. This process gives animals and plants the energy to eat, grow, and live life!

Important Uses of Air

• Sustain life and growth.
• Combustion.
• Maintaining Temperature.
• Supplier of Energy.
• Photosynthesis.

The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Air is a mixture of gases. Three elements make up over 99.9 percent of the composition of dry air: these are nitrogen, oxygen, and argon.

The most abundant naturally occurring gas is Nitrogen (N2), which makes up about 78% of air. Oxygen (O2) is the second most abundant gas at about 21%. The inert gas Argon (Ar) is the third most abundant gas at .

The movement of air through Earth’s — or any planet’s — atmosphere is called wind, and the main cause of Earth’s winds is uneven heating by the sun. This uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

Air looks invisible because it sends very little color to our eyes. Air is a mixture of gases, mainly nitrogen and oxygen, with small molecules that are far apart. Wavelengths of light may pass by these molecules without hitting them.

Earth’s Third (and Current) Atmosphere Cyanobacteria released oxygen into the atmosphere through the process of photosynthesis. At the same time, sunlight caused atmospheric ammonia to break into nitrogen and hydrogen. Most of the lighter-than-air hydrogen floated upward and eventually escaped into space.

When the bottle was tilted, the air was able to come out in the form of bubbles, and water filled up the empty space that the air has occupied. This activity shows that air occupies space. It fills all the space in the bottle. It is present everywhere around us.

Important Uses of Air

1. Sustain life and growth.
2. Combustion.
3. Maintaining Temperature.
4. Supplier of Energy.
5. Photosynthesis.

The two primary reasons plants need is air to photosynthesize (make food) and to breathe. Plants need to breathe for the same reason people and animals must breathe – they need oxygen to convert food into energy.

Air is more important than water. Normal Person take 15 -18 breathes respiration in a minute , whereas water 3-4 lit in a day . Thus air is more important.

Importance of Air to Human Life To respire we need oxygen. Even the animals in aquatic habitats need oxygen to sustain. Air is the fundamental element which keeps us alive. In fact, the water bubbles are a result of trapped air.

Answer: The air in the soil is necessary to have different locations of biological events. Plants absorb air through their roots; that is, they breathe through them, absorb oxygen, and release carbon dioxide. The air in the soil also allows microorganisms that break down organic matter to live and reproduce.

Take some water in a glass or metal container like pan and heat it. Just before water begins to boil, you will notice some bubbles at the inner surface of the pan. These bubbles come from the air dissolved in water. This shows that air is dissolved in water.

Air dissolved in water contains approximately 36 percent oxygen compared to 21 percent in air. The remaining amount can be considered as Nitrogen.

Air is pulled into the body by lungs and used to fill tiny air sacs that allow blood cells to pick up oxygen, which is then distributed across the body’s cells. Through the process of cellular respiration, this oxygen can then be used to break down sugars and create energy.

Answer: It is a compound is not a property of AIR.

Air is constantly moving around the earth. This moving air is called wind. Winds are created when there are differences in air pressure from one area to another.

Air gives shape to the objects.

Air is odorless, colorless, and tasteless. Air is everywhere, it is Earth’s main resource. Among its fascinating property are the effects of air pressure and Bernoulli’s principle. Air is an example of matter.