Question

What is the importance of carbon dioxide and oxygen for living beings?
2.
Name three major sources of pollutants in the air. Also state the ill-effects of these air poll
3.
What is the importance of ozone gas? Why is global warming a threat to life on the earth
4.
How is rainfall caused? Explain it with the help of a diagram
5. Write the difference between weather and climate.​

Answer 1

Carbon dioxide (CO2) and oxygen (O2) are the most important gases for living organisms. CO2 is vital for use by plants in photosynthesis, in which plants use CO2 and water to convert the Sun's energy into food energy. This food energy is in the form of the sugar glucose (C6H12O6). Plants also produce O2.