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Chapter 21: Solar System - Science Mcqs for Grade 7
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Chapter 21: Solar System - Science Mcqs for Grade 7
>> The atmosphere of earth is very rich in
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Q. The atmosphere of earth is very rich in
a.
nitrogen
b.
oxygen
c.
ozone
d.
both a and b
ANSWER: both a and b
Answer & Explanation
No explanation is available for this question!
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