What is the role of the ozone layer in Earth's atmosphere?
Characteristics to Support Life on Earth

Flashcard
•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The ozone layer shields Earth from ultraviolet radiation, protecting living organisms from harmful effects.
2.
FLASHCARD QUESTION
Front
Why is Earth's distance from the Sun important for supporting life?
Back
Earth's distance (150 million km) allows for a temperature range that supports liquid water, essential for life.
3.
FLASHCARD QUESTION
Front
Which two elements make up most of Earth's atmosphere?
Back
Nitrogen and Oxygen.
4.
FLASHCARD QUESTION
Front
What is one requirement that is NOT necessary for life to exist on a planet?
Back
Just the right period of rotation.
5.
FLASHCARD QUESTION
Front
What is ultraviolet radiation?
Back
Ultraviolet radiation is a type of electromagnetic radiation that comes from the sun and can be harmful to living organisms.
6.
FLASHCARD QUESTION
Front
How does temperature affect the possibility of life on a planet?
Back
If a planet's temperature is too cold, it may not support liquid water, which is essential for life.
7.
FLASHCARD QUESTION
Front
What is the significance of water for life on Earth?
Back
Water is essential for all known forms of life; it serves as a solvent, a temperature regulator, and a medium for biochemical reactions.
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