KSEEB Solutions for Class 5 EVS Chapter 6 Air in English Medium (2023)

Air is one of the natural resources. The Earth is surrounded by layers of air called the atmosphere. Air being a mixture of many gases is very essential for sustaining the life of animals and plants.KSEEB Solutions for Class 5 EVS Chapter 6 Air in English Medium (2023) Sample answers to important questions of this chapter are given here.

KSEEB Solutions for Class 5 EVS Chapter 6 Air in English Medium (2023).

Air is not visible, but its presence can be felt. How do you know that air is in your surroundings? Write 3 experiences about it.

Answer-

• When the branches of trees shake.

• When the dust on the earth rises.
• When sailing.

Study the composition of air shown in the picture and answer the following questions.

1. Which gas is the major component of air?

Answer-Nitrogen (78%)
2. What percentage of gas required for our respiration is present in the air?

Answer-Oxygen (21%)
3. What is the normal percentage of carbon dioxide in the air?

Answer-The normal percentage of carbon dioxide in the air-0.04%
4. Which is the least component present in the air?

Answer-Mixtures of inert gases and dust (0.96%).

What happens when the tire of a vehicle gets punctured?

Answer- The air in the tire goes out.

Answer-Blowing air through a tube to burn the wood stove. This allows the wood in the stove to burn well, while the air helps ignite the materials.

Match by drawing lines

Write any two measures to prevent air pollution.  

1. Preventing the mixing up of chemical wastes discharged by factories, with air. 
2. Installing tall chimneys in factories so that the smoke can be released at a higher altitude. 
3. Using gaseous fuel instead of coal, diesel, and petrol.Designing emission control systems.
4. Using public transport.
5. Using alternative energy sources like solar energy, hydroelectric power, and wind power.
6. Avoiding the burning of substances near civilian areas.

In the following pair of pictures identify the right and wrong ones keeping in view the concept of air pollution and write the reasons

KSEEB Solutions for Class 5 EVS Chapter 6 Air in English Medium (2023)-FAQS

What is wind?

When air starts to move it is called wind. Moving air has tremendous power.

What are the causes of air pollution?

Air is polluted by industrial smoke, vehicle exhaust, burning materials, and fireworks.

Air pollution is when chemicals, dust, and microorganisms that harm humans or other living things enter the air. Chemicals and toxins from factories, vehicle exhaust, etc Air pollution occurs when fine particles enter the air.

What are some measures that can be taken to prevent air pollution?

• Preventing hazardous chemical wastes emitted by industries from entering the air.
• Building tall chimneys to carry the smoke high up in the atmosphere and release it.
• Use of gas fuel instead of coal, diesel, and petrol fuel.
• Designing a smoke control system.
• Using public vehicles.
• Use of alternative energy sources such as solar energy, hydroelectric power and wind energy.
• No burning of material in residential areas.

KSEEB Solutions for Class 5 EVS Chapter 6 Air in English Medium (2023)IN PDF 👇👇

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