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Poster: Weather, Water and Air | Science for Class 4

The document Poster: Weather, Water and Air | Science for Class 4 is a part of the Class 4 Course Science for Class 4.
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FAQs on Poster: Weather, Water and Air - Science for Class 4

1. What is the relationship between weather and climate?
Ans. Weather refers to the short-term atmospheric conditions in a specific area, including elements like temperature, humidity, precipitation, and wind. Climate, on the other hand, is the long-term average of weather patterns over a significant period, typically 30 years or more. Understanding the difference is crucial for studies in meteorology and environmental science.
2. How does air pollution affect weather patterns?
Ans. Air pollution can influence weather patterns by altering the composition of the atmosphere. Pollutants like aerosols can affect cloud formation and precipitation processes, leading to changes in local weather. Additionally, pollutants can trap heat, contributing to temperature increases and potentially impacting climate change over time.
3. What are the main components of the water cycle?
Ans. The water cycle consists of several key processes: evaporation (water turning into vapor), condensation (vapor cooling and forming clouds), precipitation (water falling as rain, snow, etc.), and collection (water accumulating in oceans, rivers, and lakes). This cycle is essential for replenishing freshwater resources and maintaining ecosystems.
4. How do weather forecasts predict rainfall?
Ans. Weather forecasts predict rainfall by analyzing data from satellites, weather stations, and radar systems. Meteorologists use computer models to simulate atmospheric conditions and predict where and when precipitation is likely to occur. Factors such as humidity, temperature, and air pressure are crucial in making accurate predictions.
5. What impact does climate change have on water resources?
Ans. Climate change significantly affects water resources by altering precipitation patterns, increasing evaporation rates, and contributing to the melting of glaciers. These changes can lead to water scarcity in some regions while causing flooding in others. Understanding these impacts is vital for managing water resources sustainably.
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