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The Earth-Our World | Social Studies for Class 5

The document The Earth-Our World | Social Studies for Class 5 is a part of the Class 5 Course Social Studies for Class 5.
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FAQs on The Earth-Our World - Social Studies for Class 5

1. What are the main layers of the Earth?
Ans. The Earth is composed of four main layers: the crust, mantle, outer core, and inner core. The crust is the thin outer layer where we live. Below it is the mantle, which is semi-solid and flows slowly. The outer core is liquid and made mostly of iron and nickel, while the inner core is solid and extremely hot, also composed mainly of iron.
2. How does the Earth's rotation affect day and night?
Ans. The Earth rotates on its axis, which is an imaginary line that runs from the North Pole to the South Pole. This rotation takes about 24 hours to complete, causing different parts of the Earth to face the Sun and experience daylight, while the opposite side experiences night. This cycle of rotation gives us the day-night cycle.
3. What causes earthquakes and how can we stay safe during one?
Ans. Earthquakes are caused by the sudden release of energy in the Earth's crust, usually due to tectonic plate movements. To stay safe during an earthquake, it is important to "Drop, Cover, and Hold On." Find a sturdy piece of furniture to hide under, cover your head and neck, and stay in place until the shaking stops.
4. Why is the Earth's atmosphere important for life?
Ans. The Earth's atmosphere is crucial for life as it provides essential gases such as oxygen for breathing and carbon dioxide for plants to perform photosynthesis. It also protects living organisms from the Sun's harmful radiation and helps regulate temperature, making Earth a suitable environment for various life forms.
5. What are natural resources, and why are they important?
Ans. Natural resources are materials and components that occur in nature and can be used for economic gain, such as water, minerals, forests, and fossil fuels. They are important because they provide the raw materials for food, energy, and shelter, supporting human life and economic activities. Sustainable management of these resources is essential for future generations.
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