What is the earliest life form to produce oxygen?
Atmosphere and Weather Flashcard

Flashcard
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Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Cyanobacteria are the earliest life forms known to produce oxygen through photosynthesis.
2.
FLASHCARD QUESTION
Front
Which air is less dense and will rise?
Back
Warm air is less dense than cool air and will rise.
3.
FLASHCARD QUESTION
Front
What is a front in meteorology?
Back
A front is a boundary where two different air masses meet.
4.
FLASHCARD QUESTION
Front
What are greenhouse gases?
Back
Greenhouse gases include carbon dioxide, methane, and water vapor, which trap heat in the atmosphere.
5.
FLASHCARD QUESTION
Front
What is the symbol for a warm front?
Back
The symbol for a warm front is a line with semicircles pointing in the direction of the warm air.
6.
FLASHCARD QUESTION
Front
What is the role of cyanobacteria in Earth's atmosphere?
Back
Cyanobacteria played a crucial role in producing oxygen, leading to the Great Oxygenation Event.
7.
FLASHCARD QUESTION
Front
How does warm air affect weather patterns?
Back
Warm air can lead to the formation of clouds and precipitation as it rises and cools.
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