STANDARDBotany-Ecology
STANDARD Botany Atmospheric Composition MCQ Question
Type: MCQ-fact-Easy
The quantity of CO₂ in the atmosphere is about
A
0.003%
B
0.03%
C
0.3%
D
3.0%
Correct Answer
Option B
Detailed Explanation
Carbon dioxide occurs naturally in earth's atmosphere as a trace gas at a concentration of about 0.03%.
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