10 Questions
Which factor enables the Earth to receive the necessary heat and light from the sun?
Closeness to the sun
What percentage of Earth's atmosphere is made up of nitrogen?
78%
What is the purpose of Earth's ozone layer?
To protect from harmful radiation
Why is Earth's atmosphere important for sustaining life?
To maintain stable weather
What would happen if Earth was further away from the sun?
It would become an ice-coated rock
Which factor is responsible for generating weather patterns, warming the waters, stirring the atmosphere, and providing radiant energy for plants to manufacture their own food?
Closeness to the sun
What is the percentage of carbon dioxide in Earth's atmosphere?
0.04%
What is the main function of Earth's ozone layer?
To protect life forms from harmful radiation
What would happen if Earth's atmosphere did not have an ozone layer?
The sun's heat and light would be insufficient
Why is Earth the only planet in the solar system that can support life?
Because of the stability of its atmosphere
Study Notes
Earth's Atmosphere and Sun
- The Earth's distance from the sun enables it to receive the necessary heat and light, making life on the planet possible.
Atmospheric Composition
- Nitrogen makes up approximately 78% of Earth's atmosphere.
Ozone Layer
- The ozone layer's primary purpose is to protect life on Earth by absorbing harmful ultraviolet (UV) radiation from the sun.
- The main function of the ozone layer is to shield Earth from damaging UV radiation.
Importance of Atmosphere
- Earth's atmosphere is crucial for sustaining life, as it provides the necessary conditions for life to thrive.
Consequences of Change
- If Earth were farther away from the sun, the planet would be much colder, making life as we know it impossible.
- Without an ozone layer, Earth's atmosphere would be exposed to harmful UV radiation, posing a significant threat to life on the planet.
Energy and Life
- The sun's energy is responsible for generating weather patterns, warming the oceans, and stirring the atmosphere, ultimately providing radiant energy for plants to produce their own food through photosynthesis.
Atmospheric Gases
- Carbon dioxide makes up approximately 1% of Earth's atmosphere.
Uniqueness of Earth
- Earth is the only planet in the solar system capable of supporting life due to its unique combination of atmospheric conditions and distance from the sun.
Test your knowledge on Earth's life sustainability and the Goldilocks factors that make our planet habitable. Discover the crucial role of the sun's distance, heat, light, and more in maintaining the perfect conditions for life on Earth.
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