Toppers Study Toppers Study Toppers StudyGet complete NCERT Solutions for 6 Science 15. AIR AROUND US with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Get complete NCERT Solutions for 6 Science 15. AIR AROUND US with detailed explanations. Easy-to-understand answers to help students study effectively and score better.
Preparing for exams becomes easier with Exercise (NCERT Text Book). Whether you are studying for board exams or mid-term exams, 6 Science Chapter 15. AIR AROUND US solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.
ncert_solutions15. AIR AROUND US
Exercise:
Q1. What is the composition of air?
Ans: The air contains nitrogen 79%, oxygen 21%, carbon dioxide 1%, some other gass, water vapour. Air also contains dust particles and smoke.
Q2. Which gas in the atmosphere is essential for respiration?
Ans: Oxygen is the gas, which is essential for respiration.
Q3. How will you prove that air supports burning?
Ans: When we light a candle in a tub with some filled water and also cover the candle with inverted glass. We observe that the candle blows out after burning for some time, and the water level inside the inverted glass rises up to some
extent. The air component, oxygen is used in burning, so remains space is occupied by water and it rises up. This shows that air support burning.
Q4. How will you show that air is dissolved in water?
Ans: When water is boiled in a pan, we notice that some bubbles form around the inner surface of the pan. It means air is dissolving in water.
Q5. Why does a lump of cotton wool shrink in water?
Ans: A lump of cotton wool shrinks when immersed in water. This is because air present in the cotton wool escapes. Thus, the volume of the cotton wool decreases.
Q6. The layer of air around the earth is known as ___________.
Ans: The layer of air around the earth is known as atmosphere.
Q7. The component of air used by green plants to make their food, is ______.
Ans: The component of air used by green plants to make their food, is carbon dioxide.
Q8. List five activities that are possible due to the presence of air.
Ans:
(i) Respiration
(ii) Burning
(iii) Photosynthesis
(vi) Flying of kites
(v) Movement of sailing yachts, gliders, parachutes, airplanes
(vi) Generation of electricity by windmills
Q9. How do plants and animals help each other in the exchange of gases in the atmosphere?
Ans: All animals do respiration and they release carbon dioxide in the atmosphere and take oxygen during this process whereas, plants utilise carbon dioxide in the process of photosynthesis and release oxygen. Here we see that gaseous exchanges take place among animals and plants.
Exercise (NCERT Text Book) are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 6 Science Chapter 15. AIR AROUND US solutions help you understand the core concepts and practice effectively.
Revision is the key to exam success. Our notes for 6 Science highlight important formulas, key definitions, and exam-ready points from Chapter 15. AIR AROUND US. These quick revision notes make last-minute preparation easy.
Every NCERT chapter ends with exercises, and solving them is crucial. Our Exercise (NCERT Text Book) include complete solutions for 6 Science Chapter 15. AIR AROUND US exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.
To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 15. AIR AROUND US. Practicing these ensures you are well-prepared for both board and mid-term exams.
Our Exercise (NCERT Text Book) are useful for both board exams and mid-term exams. For 6 Science, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.
In short, Exercise (NCERT Text Book) for 6 Science Chapter 15. AIR AROUND US are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.
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