1.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 pollutants.
3. what is the importance of ozone gas? why is global warming a threat to life on the earth?
4. how is rainfall caused question mark explain it with the help of a diagram.
5. write the differences between weather and climate.
please find this answer because this is very important for me
Answers
Answer:
- 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 useCO2 and water to convert the Sun's energy into food energy. This food energy is in the form of the sugar glucose (C6H12O6).
- smoke from the factories.
- smoke from the fuel vehicles.
- dust from the construction sites.
- fumes from the radioactive powerplants
3.Ozone protects living being from the ultraviolet radiation coming from the sun.Global Warming is a threat to the World for several reasons. It changes the environment and climate on earth. Melting of glaciers leads to an increase in water level and a decrease in landmass.
4.When water on the Earth's surface is heated by the Sun, it evaporates and turns into water vapour which rises into the air. When the air cools it condenses around some dust or other particles in the air, called condensation nuclei. These small droplets then become visible as clouds.
5.Whereas weather refers to short-term changes in the atmosphere, climate describes what the weather is like over a long period of time in a specific area. Different regions can have different climates.