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Water and Air Video Lecture | Science for Class 4
FAQs on Water and Air Video Lecture - Science for Class 4
| 1. Why is water important for our body? |  |
Ans. Water is essential for our body as it helps in regulating body temperature, carrying nutrients to cells, flushing waste products out of the body, and lubricating joints. It also plays a vital role in digestion and absorption of food.
| 2. How much water should I drink in a day? | |
Ans. The amount of water needed varies depending on factors such as age, weight, activity level, and climate. However, a general guideline is to drink at least 8 cups (64 ounces) of water per day. It is always recommended to listen to your body's thirst signals and consume water accordingly.
| 3. Can drinking water help with weight loss? | |
Ans. Yes, drinking water can aid in weight loss. It helps to increase metabolism, suppresses appetite, and promotes the breakdown of fat cells. Additionally, substituting high-calorie beverages with water can reduce overall calorie intake, leading to weight loss.
| 4. How does air pollution affect our health? | |
Ans. Air pollution can have detrimental effects on our health. Inhaling polluted air can lead to respiratory issues such as asthma, bronchitis, and lung cancer. It can also worsen existing conditions like allergies and cardiovascular diseases. Long-term exposure to air pollution can have serious consequences for overall health and well-being.
| 5. What are the major sources of air pollution? | |
Ans. The major sources of air pollution include industrial emissions, vehicle exhaust, burning of fossil fuels, indoor air pollutants (such as tobacco smoke and household chemicals), and natural sources like dust and pollen. These sources release harmful pollutants into the air, contributing to air pollution and its adverse effects on human health.
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Oct 01, 2025
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Video Description: Water and Air for Class 4 2025 is part of Science for Class 4 preparation.
The notes and questions for Water and Air have been prepared according to the Class 4 exam syllabus.
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Video Lecture & Questions for Water and Air Video Lecture | Science for Class 4 - Class 4 full syllabus preparation | Free video for Class 4 exam to prepare for Science for Class 4.
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