Class 10 Chemistry MCQs - Chapter 6
Environmental Chemistry I Atmosphere Trivia Questions & Answers PDF Download - 12
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Environmental Chemistry I Atmosphere Test Questions and Answers PDF Download: MCQ 12
What is the term used for the area in which the amount of ozone has been reduced?
- black hole
- worm hole
- ozone hole
- red hole
Height of mesosphere is
- 0-12 Km
- 12-50 Km
- 50-80 Km
- above 80 Km
Percentage of methane in the air is
- 0
- 0
- 0
- 0
A waste treatment process in which solid waste is burned at high temperature is called
- combustion
- incineration
- oxidation
- reduction
Which of the following is the first layer of atmosphere as one moves upwards from the Earth's surface?
- troposphere
- stratosphere
- mesosphere
- thermosphere
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