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Flashcards: Water Cycle
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50 videos|90 docs|28 tests

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FAQs on Flashcards: Water Cycle Video Lecture - Science for Class 4

1. How does water move through the water cycle?
Ans. Water moves through the water cycle by processes such as evaporation, condensation, precipitation, and runoff. It starts with water evaporating from bodies of water, forming clouds through condensation, then falling back to the Earth as precipitation, and finally flowing back into bodies of water through runoff.
2. What is the importance of the water cycle?
Ans. The water cycle is essential for maintaining the Earth's water supply. It helps distribute water across different regions, replenishes groundwater sources, supports plant growth, and regulates the Earth's temperature through the greenhouse effect.
3. How long does it take for water to complete one cycle in the water cycle?
Ans. It takes about 10 days for water to complete one full cycle in the water cycle. However, this timeline can vary depending on factors such as temperature, humidity, and the specific processes involved.
4. How does human activity impact the water cycle?
Ans. Human activity can impact the water cycle by altering natural processes such as deforestation, urbanization, and pollution. These activities can lead to changes in precipitation patterns, increased water pollution, and disruptions in the natural flow of water.
5. Can the water cycle be disrupted by climate change?
Ans. Yes, climate change can disrupt the water cycle by causing shifts in temperature, precipitation patterns, and extreme weather events. These changes can lead to more frequent droughts, floods, and other water-related challenges.
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