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Mindmap: Air around us | Science Class 6

The document Mindmap: Air around us | Science Class 6 is a part of the Class 6 Course Science Class 6.
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FAQs on Mindmap: Air around us - Science Class 6

1. What is air made of?
Ans. Air is primarily made up of nitrogen (about 78%) and oxygen (about 21%). It also contains small amounts of other gases such as carbon dioxide, argon, and traces of water vapor.
2. How does air pollution affect our health?
Ans. Air pollution can have various harmful effects on our health. Breathing in polluted air can lead to respiratory problems, such as asthma, bronchitis, and even lung cancer. It can also worsen existing health conditions and cause cardiovascular issues.
3. How does air pressure change with altitude?
Ans. As we go higher in altitude, the air pressure decreases. This is because there is less air above us exerting downward force. Therefore, the higher we go, the lower the air pressure becomes.
4. How does air help in the formation of weather conditions?
Ans. Air plays a crucial role in the formation of weather conditions. Changes in air temperature, humidity, and pressure contribute to the creation of various weather phenomena such as rain, thunderstorms, and winds. The movement and interaction of air masses create weather patterns that we experience.
5. How does the ozone layer protect us from harmful UV rays?
Ans. The ozone layer is a protective layer in the Earth's atmosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It acts as a shield, preventing harmful UV rays from reaching the Earth's surface. This protection is important as UV rays can cause skin cancer, cataracts, and other health issues.
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