4. How is air helpful for us in different ways?
Answers
Air is a natural resource and is available abundantly. It is an essential element of nature that support life on earth. Air is equally important for living organisms for their survival just like water. Air is very useful and has many applications. Uses of air are as follows:
- Sustain life and growth
- Combustion
- Maintaining Temperature
- Supplier of Energy
- Photosynthesis
Oxygen present in the air is one of the main life-sustaining gas. All living things breathe in and breathe out the air in the form of oxygen and carbon dioxide. Nitrogen and Carbon dioxide are vital for plants and their growth.
Answer:
The atmosphere keeps the Earth from being excessively cold or hot. Another chemical in the atmosphere, ozone, also shields humans from too much sunshine. Meteoroids can be protected by the air in the atmosphere.
In addition, when we breathe, we inhale oxygen that enters our lungs, where blood capillaries absorb oxygen and carbon dioxide is exhaled into the air. Carbon dioxide is required for photosynthesis in plants.
Explanation:
Not sure :c