Environmental Chemistry-1 (The Atmosphere) - Online MCQs Test - Chemistry 10th

25 online multiple choice questions from chapter : 5 'environmental chemistry-1 (the atmosphere)' for class 10th, x, matric (sindh board / science group)

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Second highest layer of Earth's atmosphere is:

1. mesosphere
2. troposphere
3. thermosphere
4. stratosphere

Environmental Chemistry-1 (The Atmosphere) - Chemistry 10th Notes According to New Book Pattern 2022
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