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FAQs on Infographics: (Water Cycle) - Science for Class 4

1. What is the water cycle and why is it important?
Ans. The water cycle, also known as the hydrological cycle, is the continuous movement of water on, above, and below the surface of the Earth. It includes processes such as evaporation, condensation, precipitation, and infiltration. The water cycle is crucial for maintaining the Earth's climate, supporting ecosystems, and providing fresh water for drinking and agriculture.
2. What are the main stages of the water cycle?
Ans. The main stages of the water cycle include evaporation (water turning into vapor), condensation (vapor forming clouds), precipitation (water falling as rain or snow), and collection (water accumulating in bodies of water like rivers, lakes, and oceans). These stages work together to circulate water throughout the environment.
3. How do human activities affect the water cycle?
Ans. Human activities, such as urbanization, deforestation, and pollution, can significantly impact the water cycle. For example, urbanization can lead to increased runoff and reduced groundwater recharge, while deforestation can disrupt local precipitation patterns. Pollution can contaminate water sources, affecting both the quality and availability of water.
4. What role does the sun play in the water cycle?
Ans. The sun plays a critical role in the water cycle by providing the energy needed for evaporation. When the sun heats water in oceans, rivers, and lakes, it causes the water to evaporate into vapor. This process is essential for the formation of clouds and ultimately leads to precipitation.
5. Can the water cycle be affected by climate change?
Ans. Yes, climate change can significantly affect the water cycle. It can alter precipitation patterns, increase evaporation rates, and lead to more extreme weather events, such as floods and droughts. These changes can impact water availability and quality, influencing ecosystems and human activities dependent on water resources.
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