What is a trace gas?
LT 6.2 Retake #1

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Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A trace gas is a gas that is present in the atmosphere in very small amounts, typically less than 1%.
2.
FLASHCARD QUESTION
Front
Which gas is the most abundant in Earth's atmosphere?
Back
Nitrogen, making up about 78% of the atmosphere.
3.
FLASHCARD QUESTION
Front
What percentage of Earth's atmosphere is composed of oxygen?
Back
Approximately 21%.
4.
FLASHCARD QUESTION
Front
Which gas is present in the smallest amount in the Earth's atmosphere?
Back
Carbon Dioxide, which is about 0.04%.
5.
FLASHCARD QUESTION
Front
What is the role of carbon dioxide in the atmosphere?
Back
Carbon dioxide is essential for photosynthesis and helps regulate Earth's temperature.
6.
FLASHCARD QUESTION
Front
How does the amount of oxygen compare to carbon dioxide in the atmosphere?
Back
Oxygen is significantly higher than carbon dioxide.
7.
FLASHCARD QUESTION
Front
What are the primary components of Earth's atmosphere?
Back
Nitrogen (78%), Oxygen (21%), Argon (0.93%), and trace gases including carbon dioxide.
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