CTET & State TET Exam  >  Social Studies & Pedagogy Paper 2 for CTET & TET Exams  >  Flashcards: Planet: Earth in the solar system
Planet: Earth in the solar system
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Flashcards: Planet: Earth in the solar system Flashcard | Social Studies & Pedagogy Paper 2 for CTET & TET Exams - CTET & State TET
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1. What are the key characteristics of Earth that support life?
Ans.Earth is unique in the solar system due to its liquid water, breathable atmosphere, and suitable temperature range, which allow for a diverse range of life forms. The presence of a magnetic field protects the planet from harmful solar radiation, and its distance from the Sun ensures it remains within the habitable zone.
2. How does Earth's atmosphere differ from those of other planets in the solar system?
Ans.Earth's atmosphere is primarily composed of nitrogen (78%) and oxygen (21%), which are crucial for sustaining life. Unlike Venus, which has a thick carbon dioxide atmosphere, or Mars, which has a thin atmosphere with little oxygen, Earth's atmosphere supports a balanced climate and weather systems that are essential for life.
3. What is the significance of Earth's position in the solar system?
Ans.Earth's position in the solar system, located in the "Goldilocks zone," is significant because it is the right distance from the Sun to maintain liquid water and a stable climate. This position is crucial for the development and sustenance of life, setting Earth apart from other celestial bodies.
4. How do Earth's geological features influence its climate and ecosystems?
Ans.Earth's geological features, including mountains, valleys, and oceans, play a vital role in its climate and ecosystems. Mountains can block weather patterns, creating rain shadows, while oceans regulate temperature and moisture levels, impacting local and global climates, which in turn affects biodiversity and habitats.
5. What are the major threats to Earth's environment and how do they impact life?
Ans.Major threats to Earth's environment include climate change, deforestation, pollution, and habitat loss. These threats lead to rising temperatures, loss of biodiversity, and altered ecosystems, ultimately impacting food security, water supply, and overall human health, making it crucial to address these issues for the sustainability of life on Earth.
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